NPY2 RECEPTOR AGONISTS

BACKGROUND OF THE INVENTION FIELD OF THE INVENTION

The present invention relates to PYY analogues that are neuropeptide Y2 (NPY2) receptor agonists, and to their medical use in the treatment and/or prevention of a variety of diseases, conditions or disorders, such as treatment and/or prevention of excess food intake, excess body weight, obesity, metabolic diseases, and other conditions or disorders related to excess body weight or obesity, e.g. diabetes and cardiovascular diseases.

BACKGROUND INFORMATION

Overweight and obesity are defined as abnormal or excessive fat accumulation that presents a risk to health. In this regard, overweight and obesity are major risk factors for a number of chronic diseases, including type 2 diabetes, cardiovascular diseases and cancer. According to the WHO overweight and obesity are no longer considered a problem limited to high income countries but are now dramatically on the rise in low- and middle-income countries. WHO's Global Health Observatory indicate that, in 2016, 39% of women or men aged 18 and over were overweight and 11% of men and 15% of women were obese.

Despite long-standing efforts, the number of overweight and obese patients is still growing. First line therapy for overweight and obese patients comprise diet and exercise but often are not sufficiently efficacious. Second line treatment options are bariatric surgery and pharmacotherapy. Available pharmacological treatments seem to lack in efficacy and/or safety, and only a limited number of approved therapies are available in the US and in Europe.

Therefore, there is still a high medical need for more efficacious and safe treatment options. NPY (Neuropeptide Y; SEQ ID No: 1 - human sequence), PYY (Peptide YY; SEQ ID No: 2 - human sequence), and PP (Pancreatic Polypeptide; SEQ ID No:3 - human sequence) are naturally secreted homologous, 36 amino acid, C-terminally amidated peptides and belong to the PP-fold family of peptides. Sequence of hPYY (3-36): lie Lys Pro Glu Ala Pro Gly Glu Asp Ala Ser Pro Glu Glu Leu Asn Arg Tyr Tyr Ala Ser Leu Arg His Tyr Leu Asn Leu Val Thr Arg Gin Arg Tyr (SEQ ID No:4)

PYY is cleaved to PYY(3-36) by dipeptidyl peptidase IV (DPP IV). PYY(3-36) displays increased selectivity for the neuropeptide Y2 receptor over neuropeptide Yl, Y4 and Y5 receptors as compared to PYY(l-36), albeit some Yl and Y5 affinity is retained. It is believed that PYY or PYY(3-36) exhibits the feeding suppressive action via activation of the neuropeptide Y2 receptor ( Inhibition of Food Intake in Obese Subjects by Peptide YY3- 36, N Engl J Med 2003 ;349;941-8).

However, PYY and also PYY(3-36) have a short half-life in the body and show undesirable chemical or physical properties, e.g. low stability. Further, the pharmacologic effect, e.g. its efficacy as body weight lowering agent, seems limited.

W02014/178018 discloses PYY analogues and their ability to reduce food intake in mice. WO201 1/033068 and WO2011/058165 disclose long acting Y2 receptor agonists. WO2015/071355, WO2016/198682 and W02020/092191 relate to PYY compounds, which are selective Y2 receptor agonists. PYY compounds are disclosed comprising a covalently attached substituent or modifying group also referred therein as a protracting moiety.

There is a need in the art for further (long acting) PYY analogues selectively acting on the NPY2 receptor. For example, it would be desirable to increase further the solubility of PYY analogues, preferably to increase the solubility around pH 7 and/or around pH 6. This would increase the formulation options for a ready-to-use application and potentially allow combinations with other (peptide) therapeutics to improve their efficacy.

It has been found that the PYY analogues of the present invention generally are soluble around pH 6 and pH 7. BRIEF SUMMARY OF THE INVENTION

In a first aspect, the invention provides a PYY analogue, wherein the analogue comprises i) alanine at the position corresponding to position 4 of hPYY(3-36) ii) lysine at the position corresponding to position 7 of hPYY(3-36) iii) the sequence QRY at its C-terminal end, and wherein a half-life extending group is attached to the epsilon amino group of the lysine at position 7 or of a lysine at positions 6, 10, 11, 14, 17, 21, 22 or 30, or to the carboxylic acid group of the side chain of a aspartate or a glutamate at positions 14 or 30. In some embodiments, the PYY analogue comprises i) alanine at the position corresponding to position 4 of hPYY(3-36) ii) lysine at the position corresponding to position 7 of hPYY(3-36) iii) glutamate at the position corresponding to position 9 of hPYY(3-36) iv) tyrosine at the position corresponding to position 20 of hPYY(3-36) v) tryptophan at the position corresponding to position 30 of hPYY(3-36) vi) leucine at the position corresponding to position 31 of hPYY(3-36) vii) the sequence RQRY at its C-terminal end, and wherein a half-life extending group is attached to the epsilon amino group of the lysine at position 7 or of a lysine at positions 6, 10, 11, 14, 17, 21 or 22, or to the carboxylic acid group of the side chain of a aspartate or a glutamate at position 14.

In some embodiments, the PYY analogue comprises i) alanine at the position corresponding to position 4 of hPYY(3-36) ii) lysine at the position corresponding to position 7 of hPYY(3-36) iii) glutamate at the position corresponding to position 9 of hPYY(3-36) iv) tyrosine at the position corresponding to position 20 of hPYY(3-36) v) the sequence WLTRQRY at its C-terminal end, and wherein a half-life extending group is attached to the epsilon amino group of the lysine at position 7 or of a lysine at positions 6, 10, 11, 14, 17, 21, or 22, or to the carboxylic acid group of the side chain of a aspartate or a glutamate at positions 14 . In some embodiments, the PYY analogue is in accordance to one of the above embodiments and bears a half-life extending group, which is attached to the epsilon amino group of the lysine at position 7. In some embodiments of the present invention, the PYY analogue is a compound having the formula:

R ^! -Z-R ² , wherein R ¹ is hydrogen, -C(0)Ci-6 alkyl, -C(0)C ₆ H ₆ , -C(0)C _3-6 cycloalkyl, -C(0)Ci- ₆ alkyl-C _3-6 cycloalkyl, or Ci- ₆ alkyl or Ci- ₆ alkyl-C _3-6 cycloalkyl:

R ² is OH or NHR ³ , wherein R ³ is hydrogen or C 1-3 alkyl; and Z is an amino acid sequence of formula III:

Ala-Pro-X6-Ly s-Pro-X9-X 10-X 11 -X 12-X 13 -X 14-X 15 -X 16-X 17-X 18-X 19-Tyr-X21 -V al- X23-Leu-Arg-His-Tyr-Tyr-Asn-Trp-Leu-Thr-Arg-Gln-Arg-Tyr (III) wherein

X6 is selected from the group consisting of Ala and Glu;

X9 is selected from the group consisting of Glu and Gly; XI 0 is selected from the group consisting of Ala and Glu;

XI 1 is selected from the group consisting of Ala, Asp, Glu and Pro;

X12 is selected from the group consisting of Ala and Ser;

XI 3 is selected from the group consisting of Ala, Glu, Ser, Thr and Pro;

X14 is selected from the group consisting of Ala, Glu and Pro; XI 5 is selected from the group consisting of Ala and Glu,

XI 6 is selected from the group consisting of Ala and Glu;

XI 7 is selected from the group consisting of lie, Leu, Thr and Val;

XI 8 is selected from the group consisting of Glu and Gin;

XI 9 is selected from the group consisting of Ala, Glu, Arg, Lys, and Gin; X21 is selected from the group consisting of Glu and Tyr;

X23 is selected from the group consisting of Ala, Glu, Ser and Thr; and wherein a half-life extending group is attached to the epsilon amino group of the lysine at position 7.

In some embodiments, the half-life extending group consists of a lipophilic substituent X and a linker U, wherein the linker U is attached to the amino acid side chain and X is attached to U, and the linker U consists of one, two or three sub-moieties (Ul, U2, U3).

In some embodiments, the lipophilic substituent X is selected from the group consisting of 15-carboxy-pentadecanoyl, 17-carboxy-heptadecanoyl (C18DA) and 19-carboxy- nonadecanoyl, and the linker U consists of one, two or three sub-moieties independently selected from the group consisting of Gly, Glu, g-Glu, e-Lys, Ser, and OEG, or independently selected from the group consisting of g-Glu, and OEG.

In some embodiment the PYY analogue is selected from the compounds 1 to 244 described herein.

In some embodiments the PYY analogue is in the form of a salt, preferably in the form of a pharmaceutically acceptable salt. The invention further provides a composition comprising a PYY analogue as described herein.

The present invention further provides a PYY analogue for use in a method of medical treatment, e.g. for use in the treatment of obesity and various obesity-related conditions, diseases, or disorders such as type 2 diabetes, NAFLD or NASH.

The invention provides a PYY analogue of the invention for use in a method of treating, inhibiting or reducing weight gain, promoting weight loss and/or reducing excess body weight. DETAILED DESCRIPTION OF THE INVENTION

TERMS, DEFINITIONS AND CONVENTIONS

Terms not specifically defined herein should be given the meanings that would be given to them by one of skill in the art in light of the disclosure and the context. As used in the specification, however, unless specified to the contrary, the following terms have the meaning indicated and the following conventions are adhered to.

Throughout this specification, amino acid positions of the PYY analogues are numbered according to the corresponding position in native human PYY having the sequence shown above.

PYY analogues

A PYY analogue is a peptide comprising an amino acid sequence corresponding to the amino acid sequence of hPYY(3-36). In other words a PYY analogue is a peptide, whose structure is related to PYY, in which one or more amino acid residues have been modified when compared to hPYY(3-36). Possible modifications are substitutions, insertions, or deletions of amino acids at specific positions. A PYY analogue of the invention relates to a peptide that has retained a certain binding affinity (Ki) towards the hNPY2 receptor.

The term “PYY analogue” comprises the peptide itself, as well as the peptide in ionized state (e.g. when one or more side chains of its amino acids are ionized, i.e. (de)protonated).

The term “PYY analogue” may also refer to peptides, in which a half-life extending group is attached to one or more amino acids of the peptide. In such cases, a side chain of an amino acid bears a covalently attached half-life extending group.

As used herein, the term “pharmaceutically acceptable salt” is intended to indicate a salt which is not harmful to a patient or subject to which the salt in question is administered. It may suitably be a salt chosen, e.g., among acid addition salts and basic salts. As used herein, "pharmaceutically acceptable salt" refer to derivatives of the disclosed analogues or compounds wherein the parent analogue or compound is modified by making acid or base salts thereof. Examples of acid addition salts include chloride salts, citrate salts and acetate salts. Examples of basic salts include salts, where the cation is selected among alkali metal cations, such as sodium or potassium ions, alkaline earth metal cations, such as calcium or magnesium ions, as well as substituted ammonium ions, such as ions of the type N(R ¹ )(R ² )(R ³ )(R ⁴ ) ⁺ , where R ¹ , R ² , R ³ and R ⁴ independently will typically designate hydrogen or optionally substituted Ci- ₆ -alkyl. Other examples of pharmaceutically acceptable salts are described in “Remington’s Pharmaceutical Sciences”, 17th edition, Alfonso R. Gennaro (Ed.), Mark Publishing Company, Easton, PA, EISA, 1985 (and more recent editions thereof), in the “Encyclopaedia of Pharmaceutical Technology”, 3 ^rd edition, James Swarbrick (Ed.), Informa Healthcare USA (Inc.), NY, USA, 2007, and in ./. Pharm. Sci. 66: 2 (1977).

The term “agonist” as employed in the context of the invention refers to a substance that activates the receptor type in question, typically by binding to it (i.e. as a ligand). Each embodiment of the invention described herein may be taken alone or in combination with one or more other embodiments of the invention.

Throughout the present specification, unless naturally occurring amino acids are referred to by their full name (e.g. alanine, arginine, etc.), they are designated by their conventional three-letter or single-letter abbreviations (e.g. Ala or A for alanine, Arg or R for arginine, etc.).

Unless otherwise indicated, reference is made to the L-isomeric forms of the amino acids in question.

Additional abbreviations include the following:

Hyp: 4-hydroxyproline, e.g. (2S,4R)-4-hydroxyproline

[also denoted (4R)-4-hydroxy-L-proline] g-Glu: g-glutamic acid [also denoted gGlu]

The term "Ci- _n alkyl", wherein n is an integer selected from 2, 3, 4, 5 or 6, either alone or in combination with another radical, denotes an acyclic, saturated, branched or linear hydrocarbon radical with 1 to n C atoms. For example the term Ci-5-alkyl embraces the radicals ¾C-, H3C-CH2-, H3C-CH2-CH2-, H C-CH(CH3)-, H3C-CH2-CH2-CH2-, H C- CH ₂ -CH(CH ₃ )-, H C-CH(CH3)-CH2-, H C-C(CH3)2-, H3C-CH2-CH2-CH2-CH2-, H C- CH ₂ -CH ₂ -CH(CH3)-, H3C-CH ₂ -CH(CH3)-CH ₂ -, H3C-CH(CH3)-CH ₂ -CH ₂ -, H3C-CH2- C(CH ₃ )2-, H C-C(CH3)2-CH2-, H C-CH(CH3)-CH(CH3)- and H3C-CH ₂ -CH(CH ₂ CH3)-.

The term "C3-n-cycloalkyl", wherein n is an integer from 4 to n, either alone or in combination with another radical denotes a cyclic, saturated, unbranched hydrocarbon radical with 3 to n C atoms. For example, the term C3-6-cycloalkyl includes cyclopropyl, cyclobutyl, cyclopentyl and cyclohexyl.

“C(O)” or “C(=0)” refers to a carbonyl group.

Nomenclature of compounds:

As an example, i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PGED ASPEELQRYYV SLRHYYNALTRQRY - NH ₂ , wherein iVal represents 3-methylbutanoyl (-C(0)CH2CH(CH3)2),

C18DA represents 17-carboxyheptadecanoyl, gGlu represents L-y-glutamyl, connected via its amino-group to C18DA and via its g- carboxy-group to OEG1, and

OEG1 represents 2-[2-(2-aminoethoxy)ethoxy]acetoyl, connected via its amino-group to gGlu and via its carboxy-group to OEG2, and

OEG2 represents 2-[2-(2-aminoethoxy)ethoxy]acetoyl, connected via its amino-group to OEG1 and via its carboxy-group to e-amino-group of lysine (K), completely defines the PYY analogue of the following structure:

Alternatively, the same compound can be defined in the following way: N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,18Q,22V,28Y,30A,31L]hPYY(4-36).

The terms "treatment" and grammatical variants thereof (e.g. “treated”, “treating”, “treat”) as employed in the present context refer to an approach for obtaining beneficial or desired clinical results. For the purposes of this invention, beneficial or desired clinical results include, but are not limited to, alleviation of symptoms, diminishment of extent of disease, stabilization (i.e. not worsening) of state of disease, delay or slowing of disease progression, amelioration or palliation of the disease state, and remission (whether partial or total), whether detectable or undetectable. "Treatment" can also mean prolonging survival relative to expected survival time if not receiving treatment. A subject (e.g. a human) in need of treatment may thus be a subject already afflicted with the disease or disorder in question. The term “treatment” includes inhibition or reduction of an increase in severity of a pathological state or symptoms (e.g. weight gain or hyperglycemia) relative to the absence of treatment and is not necessarily meant to imply complete cessation of the relevant disease, disorder or condition.

The terms "prevention" and grammatical variants thereof (e.g., “prevented”, “preventing”, “prevent”) as employed in the present context refer to an approach for hindering or preventing the development of, or altering the pathology of, a condition, disease or disorder. Accordingly, "prevention" may refer to prophylactic or preventive measures. For the purposes of this invention, beneficial or desired clinical results include, but are not limited to, prevention or slowing of symptoms, progression or development of a disease, whether detectable or undetectable. A subject (e.g. a human) in need of “prevention” may thus be a subject not yet afflicted with the disease or disorder in question. The term “prevention” thus includes inhibiting or slowing the onset of disease relative to the absence of treatment and is not necessarily meant to imply permanent prevention of the relevant disease, disorder or condition.

Half-life extending group As described herein, a half-life extending group is covalently attached to a functional group of a side chain of an amino acid of the PYY analogue. The half-life extending group comprises or consists of a lipophilic substituent (X) and optionally a linker (U), wherein one end of the linker U (if present) is attached to an amino acid of the PYY analogue and the other end is connected to the lipophilic substituent (-U-X).

Without wishing to be bound by any particular theory, it is thought that such lipophilic substituents (and other classes of half-life extending moieties) bind albumin and other plasma components in the blood stream, thereby shielding the compound of the invention from renal filtration as well as enzymatic degradation and thus possibly enhancing the half- life of the compound in vivo. The lipophilic substituent may also modulate the potency of the compound as an agonist to the NPY2 receptor or other receptors of the NPY receptor family. The lipophilic substituent X is attached to the linker U via an ester, ether, a sulfonyl ester, a thioester, an amide, an amine, triazole or a sulfonamide. Accordingly, it will be understood that preferably the lipophilic substituent X includes an acyl group, a sulfonyl group, an alkyne, an azide, an N atom, an O atom or an S atom, which forms part of the ester, sulfonyl ester, thioester, triazole, amide, amine or sulfonamide. Preferably, an acyl group, or an O or N atom in the lipophilic substituent X forms part of an amide or ester with the linker U.

The half-life extending group (the linker U thereof, if present) is attached to an amino acid residue of the PYY analogue via an ester, a sulfonyl ester, a thioester, an amide, an amine or a sulfonamide. Accordingly, it will be understood that preferably the half-life extending group (the linker U thereof, if present) includes an acyl group, a sulfonyl group, an N atom, an O atom or an S atom which forms part of the ester, sulfonyl ester, thioester, amide, amine or sulfonamide. Preferably, an acyl group, or an O or N atom in the linker U forms part of an amide or ester with the amino acid residue. The lipophilic substituent X may comprise a hydrocarbon chain having from 10 to 24 C atoms, e.g. from 14 to 22 C atoms, e.g. from 16 to 20 C atoms. Preferably, it has at least

14 C atoms, and preferably has 20 C atoms or fewer. For example, the hydrocarbon chain may contain 14, 15, 16, 17, 18, 19 or 20 carbon atoms. The hydrocarbon chain may be linear or branched and may be saturated or unsaturated. Furthermore, it can include a functional group at the end of the hydrocarbon chain, e.g. a carboxylic acid group, a sulphonic acid group, or a tetrazole group. From the discussion above it will also be understood that the hydrocarbon chain is preferably substituted with a moiety, which forms part of the attachment to an amino acid residue of the PYY analogue or to the linker U, for example an acyl group, a sulfonyl group, an N atom, an O atom or an S atom.

Most preferably, the hydrocarbon chain is substituted with an acyl group (for the attachment to the linker U), and accordingly the hydrocarbon chain may be part of an alkanoyl group, for example a dodecanoyl, 2-butyloctanoyl, tetradecanoyl, hexadecanoyl, heptadecanoyl, octadecanoyl, nonadecanoyl or eicosanoyl group. These hydrocarbon chains substituted with an acyl group at one end may further be functionalized with a carboxylic acid group at the other end of the chain. Examples of functionalized hydrocarbon chains (e.g. lipophilic substituents X) are 15-carboxy-pentadecanoyl, 17- carboxy-heptadecanoyl and 19-carboxy-nonadecanoyl.

In certain embodiments, the linker moiety U may itself comprise one, two, three or more linked sub-moieties (U ¹ , U ² , U ³ , etc). In some of these embodiments the linker may com prise one or more (e.g. one, two or three) linked amino acid residues, which may each in dependently be a residue of any naturally occurring or non-naturally occurring amino acid. For example, the linker may comprise one, two or three linked amino acid residues, each of which may independently be a residue of Gly, Pro, Ala, Val, Leu, lie, Cys, Phe, Tyr, His, Lys, Arg, Gin, Asn, a-Glu, g-Glu, e-Lys, Asp, b-Asp, Ser, Thr, Aib, AEA (2-(2- aminoethoxy)acetic acid), AEEEA (2-{2-[2-(2-aminoethoxy)ethoxy]ethoxy}acetic acid), H ₂ N-dPEG(4)-COOH (15-amino-4,7,10,13-tetraoxa-pentadecanoic acid), H ₂ N-dPEG(6)- COOH (l-amino-3,6,9,12,15,18-hexaoxahenicosan-21-oic acid) , H ₂ N-dPEG(12)-COOH (l-amino-3,6,9,12,15,18,21,24,27,30,33,36-dodecaoxanonatriac ontan-39-oic acid), OEG- OEG (2-[2-(2-{2-[2-(2-aminoethoxy)ethoxy]acetamido}ethoxy)ethoxy ]acetic acid), H- Ebes (3-({2-[2-(2-aminoethoxy)ethoxy]ethyl}carbamoyl)propanoic acid), H-DOOA-DIG- OH (2-[({2-[2-(2-aminoethoxy)ethoxy]ethyl}carbamoyl)methoxy]ace tic acid), H-TTD- DIG-OH (2-{[(3-{2-[2-(3-aminopropoxy)ethoxy]ethoxy}propyl)carbamoyl ]methoxy} acetic acid), H-TTDS-OH (3-[(3-{2-[2-(3-aminopropoxy)ethoxy]ethoxy}propyl)- carbamoyljpropanoic acid), or 8Ado (i.e. 8-amino-3,6-dioxaoctanoyl also denoted OEG herein). References to g-Glu, e-Lys, and b-Asp indicate residues of amino acids which participate in bonds via their side chain carboxyl or amine functional groups. Thus g-Glu, and b-Asp participate in bonds via their alpha amino and side chain carboxyl groups, while e-Lys participates via its carboxyl and side chain amino groups. In the context of the present in vention, g-Glu, gGlu and isoGlu are used interchangeably.

In certain embodiments, the linker U comprises or consists of one, two or three inde pendently selected sub-moieties (U ¹ , U ² , U ³ ) selected from the group consisting of Ala, Glu, g-Glu, Gly, e-Lys, Ser, OEG and OEG-OEG.

Linkers consisting of g-Glu, y-Glu-y-Glu, g-Glu-OEG, OEG-OEG, y-Glu-y-Glu-OEG, g-Glu-OEG-OEG may be preferred.

Synthesis of PYY analogues

The invention provides a method of synthesis of a PYY analogue of the invention. The PYY analogues may be manufactured by standard synthetic methods, including standard solid-phase or liquid-phase methodology. Peptides are assembled either stepwise or by merging fragments, and optionally isolated and purified yielding the final peptide product. Synthesis examples are described in numerous publications, including Fields, G.B. et ah, “Principles and Practice of Solid-Phase Peptide Synthesis” in Synthetic Peptides, Grant G. A. (ed.), Oxford University Press (2 ^nd edition, 2002).

EMBODIMENTS

In a first aspect, the invention provides a PYY analogue, wherein the analogue comprises i) alanine at the position corresponding to position 4 of hPYY(3-36) ii) lysine at the position corresponding to position 7 of hPYY(3-36) iii) the sequence QRY at its C-terminal end, and wherein a half-life extending group is attached to the epsilon amino group of the lysine at position 7 or of a lysine at positions 6, 10, 11, 14, 17, 21, 22 or 30, or to the carboxylic acid group of the side chain of a aspartate or a glutamate at positions 14 or 30. In some embodiments, the PYY analogue comprises glutamate at the position corre sponding to position 9 of hPYY(3-36). In some embodiments, the PYY analogue comprises tyrosine at the position corresponding to position 20 of hPYY(3-36).

In some embodiment, the PYY analogue comprises tryptophan at the position corre sponding to position 30 of hPYY(3-36).

In some embodiments, the PYY analogue comprises leucine at the position corresponding to position 31 of hPYY(3-36).

In some embodiments, the PYY analogue comprises arginine or lysine at the position corresponding to position 33 of hP YY (3-36).

In some embodiments, the PYY analogue bears a half-life extending group, which is attached to the epsilon amino group of the lysine at position 7. In some embodiments of the present invention, the half-life extending group consists of a lipophilic substituent X and a linker U, wherein the linker U is attached to the amino acid side chain, and X is attached to U.

In some embodiments, the lipophilic substituent X is selected from the group consisting of 15-carboxy-pentadecanoyl, 17-carboxy-heptadecanoyl (C18DA) and ^-carboxy nonadecanoyl.

In some embodiments the linker U comprises one or more sub-moieties, wherein at least one of the sub-moieties is OEG.

In some embodiments the linker U consists of one, two or three sub-moieties (Ul, U2, U3), wherein the sub-moiety is independently selected from the group consisting of Gly, Glu, g- Glu, e-Lys, Ser and OEG.

In some embodiments, the PYY analogue comprises i) alanine at the position corresponding to position 4 of hPYY(3-36) ii) lysine at the position corresponding to position 7 of hPYY(3-36) iii) glutamate at the position corresponding to position 9 of hPYY(3-36) iv) tyrosine at the position corresponding to position 20 of hPYY(3-36) v) tryptophan at the position corresponding to position 30 of hPYY(3-36) vi) leucine at the position corresponding to position 31 of hPYY(3-36) vii) the sequence RQRY at its C-terminal end, and wherein a half-life extending group is attached to the epsilon amino group of the lysine at position 7 or of a lysine at positions 6, 10, 11, 14, 17, 21 or 22, or to the carboxylic acid group of the side chain of a aspartate or a glutamate at position 14.

In some embodiments, the PYY analogue comprises threonine at the position corre sponding to position 32 of hPYY(3-36). In some embodiments, the PYY analogue comprises the sequence WLTRQRY at its C-ter minal end.

In some embodiments, the PYY analogue bears a half-life extending group, which is attached to the epsilon amino group of the lysine at position 7.

In some embodiments, the PYY analogue comprises i) alanine at the position corresponding to position 4 of hPYY(3-36) ii) lysine at the position corresponding to position 7 of hPYY(3-36) iii) glutamate at the position corresponding to position 9 of hPYY(3-36) iv) tyrosine at the position corresponding to position 20 of hPYY(3-36) v) the sequence WLTRQRY at its C-terminal end, and wherein a half-life extending group is attached to the epsilon amino group of the lysine at position 7 or of a lysine at positions 6, 10, 11, 14, 17, 21, or 22, or to the carboxylic acid group of the side chain of a aspartate or a glutamate at positions 14 .

In some embodiments, the PYY analogue comprises arginine at the position corresponding to position 25 of hPYY(3-36). In some embodiments, the PYY analogue bears a half-life extending group, which is attached to the epsilon amino group of the lysine at position 7. In some embodiments, exactly one half-life extending group is attached to the PYY analogue, said half-life extending group being attached to the epsilon amino group of the lysine at position 7.

In some embodiments of the present invention, the PYY analogue is a compound having the formula:

R ³ -Z-R ² , wherein R ¹ is hydrogen, -C(0)Ci-6 alkyl, -C(0)C ₆ H ₆ , -C(0)C _3-6 cycloalkyl, -C(0)Ci- ₆ alkyl-C _3-6 cycloalkyl, Ci- ₆ alkyl or Ci- ₆ alkyl-C3-6 cycloalkyl: R ² is OH or NHR ³ , wherein R ³ is hydrogen or C 1-3 alkyl; and Z is a peptide comprising an amino acid sequence of formula I:

Ala-X5-X6-Lys-X8-X9-X10-Xl l-X12-X13-X14-X15-X16-X17-X18-X19-Tyr-X21-X22- X23-X24-Arg-X26-X27-X28-X29-X30-X31-X32-Arg-Gln-Arg-Tyr (I) wherein

X5 is selected from the group consisting of Pro and Hyp;

X6 is selected from the group consisting of Ala and Glu;

X8 is selected from the group consisting of Ala, lie, Pro, Thr, Val and Hyp; X9 is selected from the group consisting of Glu, Gly, Gin and Pro;

XI 0 is selected from the group consisting of Ala and Glu;

XI 1 is selected from the group consisting of Ala, Asp, Glu and Pro;

X12 is selected from the group consisting of Ala, Gly, Ser, Thr and Val;

XI 3 is selected from the group consisting of Ala, Glu, Ser, Gin, Thr and Pro; X14 is selected from the group consisting of Ala, Glu, Gly, Pro and Hyp;

XI 5 is selected from the group consisting of Ala, Glu and Ser;

XI 6 is selected from the group consisting of Ala, Glu and Ser;

XI 7 is selected from the group consisting of Ala, lie, Leu, Thr and Val; XI 8 is selected from the group consisting of Glu and Gin;

XI 9 is selected from the group consisting of Ala, Glu, Arg, Lys and Gin;

X21 is selected from the group consisting of Ala, Glu, Gin and Tyr;

X22 is selected from the group consisting of lie, Ser, Thr and Val; X23 is selected from the group consisting of Ala, Glu, Ser and Thr;

X24 is selected from the group consisting of Ala, lie, Leu, Thr and Val;

X26 is selected from the group consisting of Ala, His and Lys;

X27 is selected from the group consisting of Gin and Tyr;

X28 is selected from the group consisting of His, Trp and Tyr; X29 is selected from the group consisting of Asn, Trp and Tyr;

X30 is selected from the group consisting of Ala, His, Trp, and Tyr;

X31 is selected from the group consisting of Ala, He, Leu and Thr;

X32 is selected from the group consisting of Gin, Leu and Thr; wherein one to three amino acids of X5, X6, X8-X19, X21-X24 and X26-X32 may be absent, and wherein a half-life extending group is attached to the epsilon amino group of the lysine at position 7.

In a further embodiment the PYY analogue is according to the previous embodiment, wherein none of X5, X6, X8-X19, X21-X24 and X26-X32 is absent.

In a further embodiment R ¹ is -C(0)Ci- ₄ alkyl, -C(0)C _3-5 cycloalkyl, -C(0)Ci- ₃ alkyl- C3-4 cycloalkyl, C1-4 alkyl or C1-3 alkyl-C3-4 cycloalkyl.

In a further embodiment R ¹ is -C(0)CH ₂ CH(CH ₃ ) ₂ , -C(0)CH ₂ -cyclobutyl,

-C(0)CH ₂ -cy clopropyl . It has been found that the PYY analogues of the present invention - bearing alanine at position 4 and lysine at position 7 - generally are soluble around pH 6 and pH 7. Peptide therapeutics are usually provided as pharmaceutical liquid formulation in a pre filled ready-to-use injection device. These peptide formulations for subcutaneous admin istration have limited application volumes. Therefore, good solubility of the peptides is a requirement for the application in a ready-to-use injection device. A further important aspect is the long-term stability and solubility of the peptides in the liquid formulation. A property of fundamental importance for physical stability is the intrinsic solubility (at a given pH value).

A broad pH range, within which a peptide therapeutic is reasonably soluble (solubility window), is also desirable as it allows more flexibility for pharmaceutical formulation de velopment. This flexibility might be desirable as other factors, such as chemical stability, are also pH dependent. In general, a peptide formulation around pH 6.0 is believed to show reduced rates of oxidation (e.g. Cys oxidation, disulphide crosslinking, and oxidation of Trp residues), deamination and aspartate isomerization as compared to a formulation at pH 7. For instance, Bak et al. (A. Bak, D. Leung, S. E. Barrett, S. Forster, E. D. Minnihan, A. W. Leithead, J. Cunningham, N. Toussaint, L. S. Crocker, The AAPS Journal, Vol. 17, No. 1, 2015, p. 144 - 155) states that oxidation propensity generally lessens at lower pH and suggests maintenance at pH <7 as a strategy for mitigation risks related to oxidation. Therefore, it might be desirable to have the option to formulate around pH 6 in case chemi- cal stability of peptides containing asparagine, aspartate or glutamine, tryptophan, cysteine or methionine is an issue.

Efficacy of obesity therapeutics is limited. However, efficacy might be improved by com bining different therapeutic principles. NPY2 receptor agonists seem attractive partners for combination with other weight reducing therapeutics. For example, NPY2 receptor ago nists show enhanced weight loss efficacy with GLP-1 receptor agonists (e.g. W02005/077072, W02014/178018, W02018/081370) or amylin (e.g. W02006/066024, W02009/064298). Native amylin and many amylin (or calcitonin) analogues comprise a disulphide bridge. Therefore, a fix-dose combination of a PYY analogue with an amylin analogue might benefit from the opportunity to formulate at a lower pH where the disul phide bridge of the amylin analogue potentially shows improved stability (e.g. due to re duced intramolecular disulphide bond crosslinking reactions). This illustrates that the ad vantage to be able to formulate at a pH below 7 may not (only) be due to a higher stability of the NPY analogue but may lie therein that the combination partner shows improved stability (or solubility) at a lower pH.

Therefore, to enable co-formulation development with a diverse range of partners, it is highly desirable to identify NPY2 receptor agonists with a wide solubility window.

Increased solubility, however, should not come at the cost of reduced activity or potency. It was surprisingly found that the alanine at position 4 increases solubility around pH 6 in the PYY analogues of the invention with no or only small negative effects on activity or potency or other important properties (e.g. chemical or physical stability).

Long in-vivo half-life is also a beneficial property for agents to reduce food intake in over weight or obese patients. Compounds with a long-acting profile (as compared to the very short in-vivo half-life of native (human) PYY) reducing the frequency of administration are desirable.

In one aspect, the invention relates to PYY analogues being NPY2 receptor agonists.

In one aspect, the invention relates to PYY analogues showing selectivity towards the NPY receptor subtype Y2 as compared to Y receptor subtypes Yl, Y4 and Y5.

In one aspect, the invention relates to PYY analogues with extended half-live, e.g. with longer half-life than the half-life of hPYY(3-36). For example, the PYY analogues of the invention are suitable for once weekly administration.

Additionally or alternatively, the invention relates to PYY analogues having high chemical and/or physical stability, e.g. around pH 6 or pH 7. Further, more specific embodiments are defined below:

In a further embodiment of the present invention, the PYY analogue is a compound having the formula: R^Z-R ² , wherein R ¹ is hydrogen, -C(0)Ci-6 alkyl, -C(0)C ₆ H ₆ , -C(0)C _3-6 cycloalkyl, -C(0)Ci- ₆ alkyl-C _3-6 cycloalkyl, or Ci- ₆ alkyl or Ci- ₆ alkyl-C _3-6 cycloalkyl:

R ² is OH or NHR ³ , wherein R ³ is hydrogen or C 1-3 alkyl; and Z is an amino acid sequence of formula II:

Ala-X5-X6-Lys-X8-X9-X10-Xll-X12-X13-X14-X15-X16-X17-X18-X 19-Tyr-X21-X22- X23-X24-Arg-X26-Tyr-X28-X29-X30-X31-X32-Arg-Gln-Arg-Tyr (II) wherein

X5 is selected from the group consisting of Pro and Hyp;

X6 is selected from the group consisting of Ala and Glu;

X8 is selected from the group consisting of Ala, Pro and Hyp; X9 is selected from the group consisting of Gin, Gly, Glu and Pro;

XI 0 is selected from the group consisting of Ala and Glu;

XI 1 is selected from the group consisting of Ala, Asp, Glu and Pro;

X12 is selected from the group consisting of Ala, Gly and Ser;

XI 3 is selected from the group consisting of Ala, Glu, Ser, Thr and Pro; X14 is selected from the group consisting of Ala, Glu, Pro and Hyp;

XI 5 is selected from the group consisting of Ala, Glu and Ser;

XI 6 is selected from the group consisting of Ala, Glu and Ser;

XI 7 is selected from the group consisting of lie, Leu, Thr and Val;

XI 8 is selected from the group consisting of Gin and Glu; XI 9 is selected from the group consisting of Ala, Glu, Arg, Lys and Gin

X21 is selected from the group consisting of Ala, Glu, Gin and Tyr;

X22 is selected from the group consisting of lie, Ser, Thr and Val;

X23 is selected from the group consisting of Ala, Glu, Ser and Thr;

X24 is selected from the group consisting of Ala, He, Leu, Thr and Val; X26 is selected from the group consisting of Ala, His and Lys;

X28 is selected from the group consisting of Trp and Tyr;

X29 is selected from the group consisting of Asn and Tyr;

X30 is selected from the group consisting of His, Trp, and Tyr;

X31 is selected from the group consisting of Ala, He and Leu; X32 is selected from the group consisting of Gin and Thr; and wherein a half-life extending group is attached to the epsilon amino group of the lysine at position 7. In some embodiments in line with the embodiment described immediately above, the half- life extending group consists of a lipophilic substituent X and a linker U, wherein the linker U is attached to the amino acid side chain, and X is attached to U, and wherein the lipophilic substituent X is selected from the group consisting of 15-carboxy-pentadecanoyl, 5 17-carboxy-heptadecanoyl (C18DA) and 19-carboxy-nonadecanoyl, and the linker U consists of one, two or three sub-moieties (Ul, U2, U3), wherein the sub-moiety is independently selected from the group consisting of Gly, Glu, g-Glu, e-Lys, Ser and OEG. io In some embodiments of the present invention, the PYY analogue is a compound having the formula:

R ^! -Z-R ² , wherein R ¹ is hydrogen, -C(0)Ci-6 alkyl, -C(0)C ₆ H ₆ , -C(0)C _3-6 cycloalkyl, -C(0)Ci- ₆ alkyl-C _3-6 is cycloalkyl, or Ci- ₆ alkyl or Ci- ₆ alkyl-C _3-6 cycloalkyl:

R ² is OH or NHR ³ , wherein R ³ is hydrogen or C 1-3 alkyl; and Z is an amino acid sequence of formula III:

Ala-Pro-X6-Ly s-Pro-X9-X 10-X 11 -X 12-X 13 -X 14-X 15 -X 16-X 17-X 18-X 19-Tyr-X21 -V al- 20 X23-Leu-Arg-His-Tyr-Tyr-Asn-Trp-Leu-Thr-Arg-Gln-Arg-Tyr (III) wherein

X6 is selected from the group consisting of Ala and Glu;

X9 is selected from the group consisting of Glu and Gly;

25 XI 0 is selected from the group consisting of Ala and Glu;

XI 1 is selected from the group consisting of Ala, Asp, Glu and Pro;

X12 is selected from the group consisting of Ala and Ser;

XI 3 is selected from the group consisting of Ala, Glu, Ser, Thr and Pro;

X14 is selected from the group consisting of Ala, Glu and Pro;

30 XI 5 is selected from the group consisting of Ala and Glu,

XI 6 is selected from the group consisting of Ala and Glu;

XI 7 is selected from the group consisting of lie, Leu, Thr and Val;

XI 8 is selected from the group consisting of Glu and Gin; XI 9 is selected from the group consisting of Ala, Glu, Arg, Lys, and Gin;

X21 is selected from the group consisting of Glu and Tyr;

X23 is selected from the group consisting of Ala, Glu, Ser and Thr; and wherein a half-life extending group is attached to the epsilon amino group of the lysine at position 7.

In further embodiments, the PYY analogue is a compound according to formula I to III, wherein at least two amino acids from X6, XI 0, XI 1, XI 3 and X23 are selected from the group consisting of Asp and Glu.

In further embodiments, the PYY analogue is a compound according to any of the previous embodiments, wherein only one of X6, XI 0 and XI 5 is Ala. In a further embodiment of the present invention, the PYY analogue is a compound having the formula:

R ³ -Z-R ² , wherein R ¹ is hydrogen, -C(0)Ci-6 alkyl, -C(0)C ₆ H ₆ , -C(0)C _3-6 cycloalkyl, -C(0)Ci- ₆ alkyl-C _3-6 cycloalkyl, or Ci- ₆ alkyl or Ci- ₆ alkyl-C _3-6 cycloalkyl:

R ² is OH or NHR ³ , wherein R ³ is hydrogen or C 1-3 alkyl; and Z is an amino acid sequence of formula IV:

Ala-Pro-X6-Ly s-Pro-Glu-X 10-X 11 - Ala-X 13 -X 14-Glu-Glu-X 17-Gln-X 19-Tyr-Tyr- V al- X23-Leu-Arg-His-Tyr-Tyr-Asn-Trp-Leu-Thr-Arg-Gln-Arg-Tyr (IV) wherein

X6 is selected from the group consisting of Ala and Glu;

XI 0 is selected from the group consisting of Ala and Glu; XI 1 is selected from the group consisting of Ala, Asp and Glu;

XI 3 is selected from the group consisting of Ala, Glu, Ser, and Thr;

X14 is selected from the group consisting of Ala, Pro and Hyp;

XI 7 is selected from the group consisting of lie and Leu; XI 9 is selected from the group consisting of Arg, Lys, and Gin;

X23 is selected from the group consisting of Ala, Glu, and Ser; and wherein a half-life extending group is attached to the epsilon amino group of the lysine at position 7.

In a further embodiment, the PYY analogue is a compound according to formula IV, wherein at least 2 amino acid from X6, X10, XI 1, X13 and X23 are selected from Asp or Glu.

In further embodiments, the PYY analogue is a compound according to formula IV, wherein only one of X6, and XI 0 is Ala.

In further embodiments, the PYY analogue is a compound according to any of the previous embodiments, wherein X6 is Ala.

In further embodiments, R ¹ is hydrogen, -C(0)Ci- ₆ alkyl, -C(0)C _3-6 cycloalkyl, or Ci- ₆ alkyl. In further embodiments, R ¹ is hydrogen or -C(0)Ci- ₆ alkyl. In further embodiments, R ¹ is hydrogen or -C(0)Ci- ₄ alkyl.

In more specific embodiments, R ¹ is -C(0)CH2CH(CH3)2.

In more specific embodiments, R ² is NH2.

In some embodiments of the present invention, the PYY analogue is a compound having the formula:

RkZ-R ² , wherein R ¹ and R ² are defined as in any of the definitions above;and Z is an amino acid sequence selected from Table 1 :

1 1 1 1 1 1 111 1 111 1

Table 1 and wherein a half-life extending group is attached to the epsilon amino group of the lysine at position 7 or of a lysine at positions 6, 10, 11, 14, 17, 21 or 22, or to the carboxylic acid group of the side chain of an aspartate or a glutamate at position 14.

In an embodiment of the present invention, the PYY analogue is a compound having the formula: R^Z-R ² , wherein R ¹ and R ² are as defined above; Z is an amino acid sequence of selected from Table 1; and wherein a half-life extending group is attached to the epsilon amino group of the lysine at position 7 and consists of a lipophilic substituent X and a linker U, wherein the linker U is attached to the amino acid side chain and X is attached to U, and the linker U consists of one, two or three sub-moieties (Ul, U2, U3).

In some embodiments, the lipophilic substituent, X is selected from the group consisting of 15-carboxy-pentadecanoyl, 17-carboxy-heptadecanoyl (C18DA) and 19-carboxy- nonadecanoyl.

In some embodiments the linker U consists of one, two or three sub-moieties (U ¹ , U ² , U ³ ) independently selected from the group consisting of Gly, Glu, g-Glu, e-Lys, Ser and OEG, or independently selected from the group consisting of g-Glu and OEG.

In certain embodiments, the linker U is selected from the group consisting of g-Glu, g-Glu- g-Glu, g-Glu-OEG, OEG-OEG, y-Glu-y-Glu-OEG, g-Glu-OEG-OEG

In specific embodiments, the half-life extending group is C 18D A-g-Glu-OEG-OEG-, i.e.

In some embodiments of the present invention, the PYY analogue is a compound selected from the group consisting of compound 1 to compound 244 as defined below.

In some embodiments, the PYY analogue has a maximum of 15 amino acid modifications as compared to hPYY(3-36). In some embodiments, the PYY analogue has a maximum of 14 amino acid modifications as compared to hPYY(3-36).

In some embodiments, the PYY analogue has a maximum of 13 amino acid modifications as compared to hPYY(3-36).

In some embodiments, the PYY analogue has a maximum of 12 amino acid modifications as compared to hPYY(3-36). In some embodiments, the PYY analogue has a maximum of 11 amino acid modifications as compared to hPYY(3-36).

In some embodiments, the PYY analogue has between 7 and 15 (i.e. 7, 8, 9, 10, 11, 12, 13, 14 or 15) amino acid modifications as compared to hPYY(3-36).

In some embodiments, the PYY analogue has between 8 and 14 (i.e. 8, 9, 10, 11, 12, 13 or 14) amino acid modifications as compared to hPYY(3-36).

In some embodiments, the PYY analogue has between 5 and 13 (i.e. 5, 6, 7, 8, 9, 10, 11, 12 or 13) amino acid modifications as compared to hPYY(3-36).

In some embodiments, the PYY analogue has between 7 and 13 (i.e. 7, 8, 9, 10, 11, 12 or 13) amino acid modifications as compared to hPYY(3-36). In some embodiments, the PYY analogue has between 8 and 13 (i.e. 8, 9, 10, 11, 12 or 13) amino acid modifications as compared to hPYY(3-36).

In some embodiments, the PYY analogue has between 9 and 13 (i.e. 9, 10, 11, 12 or 13) amino acid modifications as compared to hPYY(3-36).

In some embodiments, the PYY analogue has between 10 and 13 (i.e. 10, 11, 12 or 13) amino acid modifications as compared to hPYY(3-36). In some embodiments, the PYY analogue has between 8 and 12 (i.e. 8, 9, 10, 11 or 12) amino acid modifications as compared to hPYY(3-36).

In some embodiments, the PYY analogue has between 9 and 12 (i.e. 9, 10, 11 or 12) amino acid modifications as compared to hPYY(3-36).

In some embodiments, the PYY analogue has between 10 and 12 (i.e. 10, 11 or 12) amino acid modifications as compared to hPYY(3-36). In some embodiments, the PYY analogue has between 9 and 11 (i.e. 9, 10 or 11) amino acid modifications as compared to hPYY(3-36).

In some embodiments, the PYY analogue has between 11 and 12 (i.e. 11 or 12) amino acid modifications as compared to hPYY(3-36).

In some embodiments, the PYY analogue or compound of the above-mentioned embodi ments is in the form of a salt, preferably in the form of a pharmaceutically acceptable salt. The PYY analogues of the invention are able to bind to the human NPY2 receptor (hNPY2-R).

Binding to biological receptors can be measured by appropriate assays known in the art. For instance, binding of PYY analogues to the NPY2 receptor can be evaluated by radio-ligand binding competition assays, e.g. as described in Example 1, below.

In some embodiments of compounds of the present invention, the binding affinity (Ki) towards hNPY2 receptor is below 100 nM (e.g. 0.01 to 100 nM).

In some embodiments of compounds of the present invention, the binding affinity (Ki) towards hNPY2 receptor is below 50 nM (e.g. 0.01 to 50 nM).

In some embodiments of compounds of the present invention, the binding affinity (Ki) towards hNPY2 receptor is below 10 nM (e.g. 0.01 to 10 nM). In some embodiments of compounds of the present invention, the binding affinity (Ki) towards hNPY2 receptor is below 5 nM (e.g. 0.01 to 5 nM).

In some embodiments of compounds of the present invention, the binding affinity (Ki) towards hNPY2 receptor is below 2 nM (e.g. 0.01 to 2 nM).

The PYY analogues of the invention activate the human NPY2 receptor, i.e. they are NPY2 agonists. In general, it is preferred to use a biological assay which measures intracellular signalling caused by binding of the compound to the relevant receptor. Activation of the NPY2 receptor by compounds of the invention (which behave as agonists of the receptor) reduces cAMP concentrations effecting intracellular signalling pathways. Thus, reduction of cAMP or any other suitable parameter in cells expressing the receptor can be used to monitor agonist activity towards the receptor. The skilled person will be aware of suitable assay formats, and examples are provided below.

EC ₅₀ values may be used as a numerical measure of agonist potency at a given receptor.

An EC50 value is a measure of the concentration of a compound required to achieve half of that compound’s maximal activity in a particular assay, e.g. in the assay as described in Example 2, below.

In some embodiments of compounds of the present invention, the EC50 towards hNPY2 receptor is below 100 nM (e.g. 0.001 to 100 nM). In some embodiments of compounds of the present invention, the EC50 towards hNPY2 receptor is below 50 nM (e.g. 0.001 to 50 nM).

In some embodiments of compounds of the present invention, the EC50 towards hNPY2 receptor is below 10 nM (e.g. 0.001 to 10 nM).

In some embodiments of compounds of the present invention, the EC50 towards hNPY2 receptor is below 5 nM (e.g. 0.001 to 5 nM).

In some embodiments of compounds of the present invention, the EC50 towards hNPY2 receptor is below 2 nM (e.g. 0.001 to 2 nM). As mentioned above the PYY analogues or compounds of the present invention are gener ally soluble around pH 7 and 6. There are several techniques known to the skilled person in the art how to determine solubility. One such experiment is described below under Example 3. If specific solubility in mg/ml is provided herein, it is referred to the solubility determination as in Example 3.

In some embodiments, the solubility of the PYY analogues or compounds of the invention is greater than 1.0 mg/ml around pH 6 (e.g. at pH 6.1 ± 0.2).

In some embodiments, the solubility of the PYY analogues or compounds of the invention is greater than 3.0 mg/ml around pH 6 (e.g. at pH 6.1 ± 0.2).

In some embodiments, the solubility of the PYY analogues or compounds of the invention is greater than 5.0 mg/ml around pH 6 (e.g. at pH 6.1 ± 0.2).

In some embodiments, the solubility of the PYY analogues or compounds of the invention is equal to or greater than 7.0 mg/ml around pH 6 (e.g. at pH 6.1 ± 0.2). In some embodiments, the solubility of the PYY analogues or compounds of the invention is equal to or greater than 8.0 mg/ml around pH 6 (e.g. at pH 6.1 ± 0.2).

In some embodiments, the solubility of the PYY analogues or compounds of the invention is greater than 1.0 mg/ml around pH 7 (e.g. at pH 6.8 ± 0.2). In some embodiments, the solubility of the PYY analogues or compounds of the invention is greater than 5.0 mg/ml around pH 7 (e.g. at pH 6.8 ± 0.2).

In some embodiments, the solubility of the PYY analogues or compounds of the invention is greater than 7.0 mg/ml around pH 7 (e.g. at pH 6.8 ± 0.2).

In some embodiments, the solubility of the PYY analogues or compounds of the invention is equal to or greater than 8.0 mg/ml around pH 7 (e.g. at pH 6.8 ± 0.2).

In some embodiments, the solubility of the PYY analogues or compounds of the invention is greater than 1.0 mg/ml around pH 6 (e.g. at pH 6.1 ± 0.2) and around pH 7 (e.g. at pH 6.8 ± 0.2).

In some embodiments, the solubility of the PYY analogues or compounds of the invention is greater than 3.0 mg/ml around pH 6 (e.g. at pH 6.1 ± 0.2) and around pH 7 (e.g. at pH 6.8 ± 0.2). In some embodiments, the solubility of the PYY analogues or compounds of the invention is greater than 5.0 mg/ml around pH 6 (e.g. at pH 6.1 ± 0.2) and around pH 7 (e.g. at pH 6.8 ± 0.2).

In some embodiments, the solubility of the PYY analogues or compounds of the invention is greater than 6.0 mg/ml around pH 6 (e.g. at pH 6.1 ± 0.2) and around pH 7 (e.g. at pH 6.8 ± 0.2).

In some embodiments the PYY analogues or compounds of the invention have favourable pharmacokinetic properties. In this regard, in some embodiments of the invention, the in- vivo half-life of the PYY analogues or compounds is at least 3 hours in the mouse (NMRI mice, see measurement described in Example 5). In some embodiments, the in-vivo half- life is at least 5 hours in the mouse. In some embodiments, the in-vivo half-life is at least 7 hours in the mouse. In some embodiments, the in-vivo half-life is at least 10 hours in the mouse.

The invention further provides a composition comprising a PYY analogue as described above. The composition may be a pharmaceutical composition, and may comprise a phar maceutically acceptable carrier, excipient or vehicle. The invention further provides a method for the synthesis of a PYY analogue as described above. The method may comprise the steps of synthesising the peptide by solid-phase or liquid-phase methodology, and optionally isolating and/or purifying the final product.

METHOD OF TREATMENT The present invention is directed to PYY analogues or a compound according to the above- mentioned embodiments, which are useful in the prevention and/or treatment of a disease and/or condition associated with or modulated by NPY2 receptor activity, including but not limited to the treatment and/or prevention of obesity and various obesity-related condi tions, diseases, or co-morbidities, such as type 2 diabetes and NASH (non-alcoholic steato- hepatitis).

The compounds described herein find use, inter alia, in preventing weight gain or promot ing weight loss. By "preventing" is meant inhibiting or reducing when compared to the absence of treatment, and is not necessarily meant to imply complete cessation of weight gain. The peptides may cause a decrease in food intake and/or increased energy expendi ture, and may have a beneficial effect on glucose control and/or on circulating cholesterol levels, being capable of lowering circulating LDL levels and increasing HDL/LDL ratio. Thus, the compounds of the invention can be used for direct or indirect therapy of any condition caused or characterised by excess body weight, such as the treatment and/or pre vention of obesity, morbid obesity, obesity linked inflammation, obesity linked gallbladder disease, and obesity related sleep apnea. They may also be used for the prevention of conditions or treatment of obesity associated co-comorbidities caused or characterised by inadequate glucose control or dyslipidaemia (e.g. elevated LDL levels or reduced HDL/LDL ratio), Type 2 diabetes, metabolic syndrome, hypertension, atherogenic dyslipidemia, and cardiovascular diseases such as atherosclerosis, coronary heart disease, peripheral artery disease, stroke or microvascular disease, and cancer. Their effects in these conditions may be as a result of or associated with their effect on body weight, or may be independent thereof.

As mentioned above the PYY analogues or compounds according to the above mentioned embodiments are useful in the reduction of food intake, promotion of weight loss, and inhi bition or reduction of weight gain. As a result, they may be used for treatment of a variety of conditions, diseases, or disorders in a subject, including, but not limited to, obesity and various obesity-related conditions, diseases, or co-morbidities, such as type 2 diabetes, hypertension, dyslipidemia, sleep apnea, cardiovascular disease, hepatic steatosis, non alcoholic fatty liver disease (NAFLD), non-alcoholic steatohepatitis (NASH) and cancer. The subject may be affected by obesity accompanied by at least one weight-related co- morbid condition, such as type 2 diabetes, hypertension, dyslipidemia, sleep apnea, cardio vascular disease, hepatic steatosis, NAFLD and NASH. It will be understood that the PYY analogues may thus be administered to subjects affected by conditions characterised by inadequate control of appetite or otherwise over- feeding, such as binge-eating disorder and Prader-Willi syndrome. It will be clear that the analogues can be used for treatment of combinations of the conditions described.

Thus, the invention provides a PYY analogue for use in a method of medical treatment, e.g. for treating, inhibiting or reducing weight gain, promoting weight loss and/or reducing excess body weight. Treatment may be achieved, for example, by control of appetite, feeding, food intake, caloric intake and/or energy expenditure.

The invention also provides a PYY analogue of the invention for use in a method of treating obesity as well as associated diseases, disorders and health conditions, including, but not limited to, morbid obesity, obesity prior to surgery, obesity-linked inflammation, obesity-linked gallbladder disease and obesity related sleep apnea and respiratory problems, degeneration of cartilage, osteoarthritis, and reproductive health complications of obesity or overweight such as infertility. The subject may be affected by obesity accom panied by at least one weight-related co-morbidity, such as type 2 diabetes, hypertension, dyslipidemia, sleep apnea, cardiovascular disease, cancer, hepatic steatosis, NAFLD and NASH.

The invention also provides a PYY analogue of the invention for use in a method of pre vention or treatment of conditions mentioned above.

Accordingly, the present invention relates to a PYY analogue or a compound according to the above-mentioned embodiments for use as a medicament.

Furthermore, the present invention relates to the use of a PYY analogue or a compound according to the above-mentioned embodiments for the treatment and/or prevention of a disease and/or condition associated with or modulated by NPY2 receptor activation. Furthermore, the present invention relates to the use of a PYY analogue or a compound according to the above mentioned embodiments for the treatment and/or prevention of obesity and various obesity-related conditions, diseases, or co-morbidities, such as type 2 diabetes and NASH (non-alcoholic steatohepatitis) and others as mentioned above.

In a further aspect the present invention relates to the use of a PYY analogue or a compound according to the above mentioned embodiments for the preparation of a medicament for the treatment and/or prevention of above-mentioned diseases and conditions.

In a further aspect the present invention relates to methods for the treatment or prevention of above mentioned diseases and conditions, which method comprises the administration of an effective amount of a PYY analogue or a compound according to the above- mentioned embodiments to a human being.

The dose range of the compounds of general formula 1 applicable per week is usually from 0.01 to 100 mg for humans (subcutaneous administration).

The actual pharmaceutically effective amount or therapeutic dosage will usually depend on factors known by those skilled in the art such as age and weight of the patient, route of administration and severity of disease. In any case, the compounds will be administered at dosages and in a manner, which allows a pharmaceutically effective amount to be delivered based upon patient’s unique condition.

COMBINATION THERAPY A PYY analogue of the invention may be administered as part of a combination therapy together with another active agent for the treatment of the disease or disorder in question, e.g. an anti-obesity agent, an anti-diabetic agent, an agent for treatment of metabolic syndrome, an anti-dyslipidemia agent, an anti-hypertensive agent, a proton pump inhibitor, or an anti-inflammatory agent. In such cases, the two active agents may be given together or separately, e.g. as constituents in the same pharmaceutical composition or formulation, or as separate formulations.

Thus, a peptide of the invention may be used in combination with an anti-obesity agent of known type. The anti-obesity agent may be a GIP or GLP-1 receptor agonist (including GLP-1 or a GLP-1 analogue, exendin-4 or an exendin-4 analogue, any other GLP-1 receptor agonist including Liraglutide (Saxenda™), Semaglutide, Dulaglutide, Albiglutide, MK-8521, or a glucagon-GLP-1 dual agonist (e.g. HM-12525, SAR-425899, MEDI-0382, NN-9277 or as described in W02008/101017, W02008/152403, WO2010/070252, W02010/070253, W02010/070255, WO2010/070251, WO2011/006497, WO201 1/160630, WO2011/160633, W02013/092703, W02014/041195,

W02015/055801, W02015/055802, WO2016/166289), oxyntomodulin or an oxyntomodulin analog (e.g. TT-401) or a GLP-l/GIP dual agonist (e.g. Tirzepatide or as described in WO2013/164483), or a GLP-l/GIP/glucagon triple agonists (e.g. NN-9423 or as described in WO2015/067716, WO2016/198624, WO2017/116204, WO2017/116205, W02018/100134, W02018/100135).

The anti-obesity agent may be amylin or an amylin analogue, e.g. pramlintide, NN-9838, or an amylin (or calcitonin) analogue disclosed in WO2012/168430, WO2012/168431, WO2012/168432, WO2015/040182, WO2015/071229, WO2016/146739,

WO20 18/046719, or WO2018/172390.

Alternatively, the anti-obesity agent may be Orlistat™, Sibutramine™, phentermine, a melanin concentrating hormone receptor 1 antagonist, CCK, leptin analogue, a GOAT inhibitor, a ghrelin-receptor antagonist, a further neuropeptide Y (NPY) analogue, a NPY4 receptor agonist, a NPY5 receptor antagonist, a cannabinoid receptor 1 antagonist, a beta-3 agonist, a lipase inhibitor, Human prolslet Peptide (HIP), a melanocortin receptor 4 agonist, as well as analogues thereof.

Moreover, a peptide of the invention may have some benefit if administered in combi- nation with an anti-diabetic agent of known type, including, but not limited to, metformin, a sulfonylurea, a glinide, a DPP-IV inhibitor, a glitazone, a GLP-1 receptor agonist (including GLP-1 or a GLP-1 analogue, an exendin-4 or an exendin-4 analogue, any other GLP-1 receptor agonist including Liraglutide (Victoza™), Semaglutide, Dulaglutide, Albiglutide, MK-8521, or a glucagon-GLP-1 dual agonist (e.g. HM-12525, SAR-425899, MEDI-0382, NN-9277 or as described in W02008/101017, W02008/152403,

WO20 10/070252, W02010/070253, W02010/070255, WO2010/070251,

WO20 11/006497, WO2011/160630, WO2011/160633, W02013/092703,

W02014/041195, W02015/055801, W02015/055802, WO2016/166289), oxyntomodulin, or an oxyntomodulin analog (e.g. TT-401), or a SGLT2 inhibitor (i.e. an inhibitor of sodium-glucose transport, e.g. a gliflozin such as empagliflozin, canagliflozin, dapagliflozin or ipragliflozin), a GPR40 agonist (FFAR1/FFA1 agonist, e.g. fasiglifam), or an insulin or an insulin analogue. Examples of appropriate insulin analogues include, but are not limited to, Lantus™, Novorapid™, Humalog™, Novomix™, Actraphane™ HM, Levemir™ Degludec™ and Apidra™. Other relevant anti-diabetic agents in this connection include GLP-1 receptor agonists, such as exenatide (Byetta™ and Bydureon™ exendin-4) and Byetta LAR™, and lixisenatide (Lyxumia™). According to more specific embodiments, the PYY analogue of the present invention is administered as part of a combination therapy together with

• a GLP-1 receptor agonist selected from the group consisting of Liraglutide, Semaglutide, Dulaglutide and Albiglutide or a glucagon-GLP-1 dual agonist described in WO2011/006497, W02014/041195, W02015/055801,

W02015/055802, WO2016/166289 or

• an amylin receptor agonist selected from the group consisting of pramlintide or an amylin analogue disclosed in WO2012/168430, WO2012/168431, WO2012/168432, WO2015/040182, WO2016/146739, or WO2018/046719. A peptide of the invention may further be used in combination with medications targeting cardiovascular diseases treating hypertension, dyslipidemia, inflammation and platelet function. The medication treating hypertension can be selected from the group including, but not limited to, an angiotensin-converting enzyme inhibitor, an angiotensin II receptor blocker, a diuretic, a beta-blocker or a calcium channel blocker A peptide of the invention may still further be used in combination with an anti- dyslipidemia agent of known type, including, but not limited to, a statin, a fibrate, a niacin, a PSCK9 (Proprotein convertase subtilisin/kexin type 9) inhibitor, or a cholesterol absorption inhibitor.

A peptide of the invention may also be used in combination with a proton pump inhibitor (i.e. a pharmaceutical agent possessing pharmacological activity as an inhibitor of H ⁺ /K ⁺ -

ATPase) of known type, including, but not limited to, an agent of the benzimidazole derivative type or of the imidazopyridine derivative type, such as Omeprazole™, Lansoprazole™, Dexlansoprazole™, Esomeprazole™, Pantoprazole™, Rabeprazole™, Zolpidem™, Alpidem™, Saripidem™ or Necopidem™.

In addition, with regard to anti-inflammatory treatment, a peptide of the invention may be beneficial if administered in combination with an anti-inflammatory agent of known type, including, but not limited to: steroids and corticosteroids, such as beclomethasone, methylprednisolone, betamethasone, prednisone, dexamethasone, and hydrocortisone; non-steroidal anti-inflammatory agents (NSAIDs), such as propionic acid derivatives (e.g. alminoprofen, benoxaprofen, bucloxic acid, carprofen, fenbufen, fenoprofen, fluprofen, flurbiprofen, ibuprofen, indoprofen, ketoprofen, miroprofen, naproxen, oxaprozin, pirprofen, pranoprofen, suprofen, tiaprofenic acid and tioxaprofen); acetic acid derivatives (e.g. indomethacin, acemetacin, alclofenac, clidanac, diclofenac, fenclofenac, fenclozic acid, fentiazac, furofenac, ibufenac, isoxepac, oxpinac, sulindac, tiopinac, tolmetin, zidometacin and zomepirac); fenamic acid derivatives (e.g. flufenamic acid, meclofenamic acid, mefenamic acid, niflumic acid and tolfenamic acid); biphenylcarboxylic acid derivatives (e.g. diflunisal and flufenisal); oxicams (e.g. isoxicam, piroxicam, sudoxicam and tenoxicam); salicylates (e.g. acetylsalicylic acid and sulfasalazine); and pyrazolones (e.g. apazone, bezpiperylon, feprazone, mofebutazone, oxyphenbutazone and phenylbutazone);

COX II inhibitors, such as rofecoxib and celecoxib; preparations of interferon beta (e.g. interferon beta- la or interferon beta- lb); and certain other compounds, such as 5-aminosalicylic acid and prodrugs and pharma ceutically acceptable salts thereof.

PREPARATION

General procedure for solid phase synthesis of peptides

All peptides were synthesized by standard Fmoc-based solid phase peptide chemistry on a Tentagel S RAM resin (loading 0.23-0.25 mmol/g, bead size 90 pm) supplied by Iris Biotech GmbH or Rapp Polymere GmbH.

The following protected amino acids were used: Fmoc-Ala-OH, Fmoc-Arg(Pbf)-OH, Fmoc-Asn(Trt)-OH, Fmoc-Asp(tBu)-OH, Fmoc-Gln(Trt)-OH, Fmoc-Glu(tBu)-OH, Fmoc- Glu-OtBu, Fmoc-Gly-OH, Fmoc-His(Trt)-OH, Fmoc-Ile-OH, Fmoc-Leu-OH, Fmoc- Lys(Boc)-OH, Fmoc-Lys(Dde)-OH, Fmoc-Phe-OH, Fmoc-Pro-OH, Fmoc-Ser(tBu)-OH, Fmoc-Thr(tBu)-OH, Fmoc-Trp(Boc)-OH, Fmoc-Tyr(tBu)-OH, Fmoc-Val-OH. The L-form of the amino acid building blocks was utilized if not specified otherwise. The modular half-life extending group was built up by solid-phase peptide synthesis (SPPS) using protected building blocks such as, but not limited to, 18-(tert-butoxy)-18-oxooctadecanoic acid (Cl 8DA(tBu)), 2-[2-[2-[[2-[2-[2-(9H-fluoren-9-ylmethoxycarbonyl- amino)ethoxy] ethoxy] acetyl] amino] ethoxy] ethoxy] acetic acid (Fmoc-OEG-OEG-OH), 2- [2-[2-(9H-fluoren-9-ylmethoxycarbonylamino)ethoxy]ethoxy] acetic acid (Fmoc-OEG- OH) and Fmoc-Glu-OtBu.

The amino acids, Fmoc-Glu-OtBu, Oxyma and DIC, were purchased from standard suppliers, e.g. Bachem, Novabiochem, ABCR, Iris Biotech GmbH, Sigma- Aldrich. 18- (Tert-butoxy)-18-oxooctadecanoic acid (C18DA(tBu)) was supplied by Cool Pharm Ltd. or AstraTech, 2-[2-[2-[[2-[2-[2-(9H-Fluoren-9-ylmethoxycarbonyl- amino)ethoxy] ethoxy] acetyl] amino] ethoxy] ethoxy] acetic acid (Fmoc-OEG-OEG-OH) was supplied by ABCR GmbH & CO. KG or Iris Biotech GmbH, 2-[2-[2-(9H-fluoren-9- ylmethoxycarbonylamino)ethoxy]ethoxy] acetic acid (Fmoc-OEG-OH) was supplied by Combi Blocks Inc., Iris Biotech GmbH or Hangzhou APIChem Technology Co., Ltd. 3- Methylbutanoic acid was supplied by Sigma- Aldrich GmbH.

Assembly of peptides started from the C-terminus by stepwise chain elongation towards the N-terminus according to the respective sequences until the N-terminal capping group was reached. Deprotection of the side chain of the branching amino acid, e.g. Lys(Dde), was followed by assembly of the half-life extending group.

The PYY analogues were obtained as TFA salts from the cleavage/deprotection or from the HPLC purification. The trifluoroacetate can be exchanged by common procedures, such as resin-ion exchange procedures, e.g. as disclosed in Roux, St. etal. ./. Pept. Sci.

2008; 14: 354-359.

Synthesis Method 1 (S011

Peptides were synthesized by microwave-assisted solid-phase peptide synthesis (SPPS) on a CEM Liberty Blue Peptide Synthesizer at 0.25 mmol scale on Tentagel S RAM resin using the Fmoc strategy.

Standard coupling of amino acids was performed with 4 eq of suitably protected amino acid in DMF (0.2 mol/1, 5 ml), 4 eq of Oxyma in DMF (1 mol/1, 1 ml) and 8 eq DIC in DMF (1 mol/1, 2 ml) at 90 °C for 4 min. Fmoc-Arg(Pbf)-OH was coupled 2 times at 90 °C for 4 min, Fmoc-His(Trt)-OH was coupled 2 times at 50 °C for 12 min and Fmoc-Glu- OtBu was coupled 4 times at 50 °C for 12 min. Fmoc-OEG-OH, Fmoc-OEG-OEG-OH and C18DA(tBu) were coupled 2 times for 4 min at 90 °C. Capping of the N-terminus was achieved by coupling 3-methylbutanoic acid 3 times at 90 °C for 4 min. N“Fmoc deprotection was performed with 20% piperidine/DMF (10 ml) for 1 min at 90 °C. Deprotection of the Lys(Dde)-group was carried out 2 times with 5% hydrazine hydrate in DMF (10 ml) for 3 min at 90 °C.

Raw products were washed on resin with DCM and dried prior to cleavage. Cleavage from resin and deprotection was performed with a mixture of 95% TF A/water (10 ml) and triiso- propylsilane (250 mΐ) for 40 min at 42 °C. Crude peptides were precipitated with cold diethyl ether, dissolved in 50% acetonitrile/water and purified by preparative HPLC (P01).

Synthesis method 2 (S02) Peptides were synthesized by SPPS on a MultiSynTech SYRO II at 0.2 mmol scale.

Standard coupling of amino acids was achieved by using 4 eq of suitably protected amino acids dissolved in 0.5 mol/1 Oxyma-DMF solution (0.5 mol/1, 1.6 ml) and 4.5 eq DIC (0.5 mol/1, 1.8 ml) in DMF. Fmoc-Phe-OH was dissolved in 0.5 mol/1 Oxyma-NMP and 4 eq were used for coupling (0.5 mol/1, 1.6 ml). Coupling time of the first 15 amino acids starting from the C-terminus was 2 h at RT. Subsequent couplings were realized by double coupling (2 ^c 2h at RT). Capping of the N- terminus was achieved by coupling with 3-methylbutanoic acid (2 x 2h at RT). Deprotection of Lys(Dde)-group was carried out selectively using 5 % hydrazine in DMF (5 x 5 min at RT, 4 ml) followed by coupling of 4eq Fmoc-OEG-OEG-OH (3 x 2h at RT), 4 eq Fmoc- Glu-OtBu and 4eq C18DA(tBu) (2 x 2 h at RT).

N“ Fmoc deprotections were performed using 40% piperidine in NMP (4 ml) for 3 min followed by 20% piperidine in NMP (4 ml) for 15 min at RT.

Peptides were cleaved from resin and side-chains deprotected by adding 15 ml 95:2:1:2 TFA:DODT:TES:water for 4 h at RT or 45 min at 45 °C. The peptides were precipitated with cold diethyl ether, dissolved in acetonitrile/water and purified by preparative HPLC(P02).

Synthesis method 3

Peptides were synthesized using microwave-assisted SPPS on a Biotage Alstra Synthesizer at 0.2 mmol scale.

Standard coupling of amino acids was achieved by using 5 eq of suitably protected amino acid dissolved in 0.5 mol/1 Oxyma-DMF solution (0.5 mol/1, 2 ml) and 5 eq DIC in DMF (0.5 mol/1, 2 ml). Coupling of the first 15 amino acids starting from the C-terminus was achieved by heating for 5 min to 75 °C. Subsequent couplings were realized by double coupling (2 x 5 min at 75 °C).

N ^a Fmoc deprotections were carried out using 20% piperidine in DMF for 30 sec followed by 20% piperidine for 3 min at 75 °C.

Special conditions were used for: coupling of Fmoc-His(Trt)-OH (2 x 12 min at 50 °C) and subsequent Fmoc-deprotection at RT (20% piperidine in DMF for 3 min followed by 20% piperidine in DMF for 10 min); coupling of Fmoc-Glu-OtBu (2 ^ 6 min at 75 °C) and Fmoc-Arg(Pbf)-OH (2 x 5 min at 75 °C); coupling of Fmoc-Asp(tBu)-OH and subsequent Fmoc-deprotection at RT (20% piperidine in DMF for 3 min followed by 20% piperidine in DMF for 10 min); Dde deprotection with 5 % hydrazine in DMF (5 x 5 min at RT); coupling of 4 eq Fmoc-OEG-OEG-OH (3 x 10 min at 75 °C) and 2.5 eq C18DA(tBu) (2 x 10 min at 75 °C).

Cleavage from resin and side-chain deprotection was performed by adding 8 ml 95:2: 1 :2 TFA:DODT:TES:water for 4 hours at RT or 45 min at 45 °C. Crude peptides were precipitated with cold diethyl ether, dissolved in 50% acetonitrile/water and purified by preparative HPLC (P02).

Purification Method 1 (P01)

Crude peptides were purified by reversed phase chromatography using an Agilent preparative HPLC-MS System with preparative pumps G1361 A, a diode array detector G1315B, a mass-spectrometer G1956B and a fraction collector CTC PAL IFC. A Waters XSelect CSH Prep C18 column (130 A, 5 pm, OBD, 30 mm x 150 mm) served as stationary phase. The mobile phase was run with a gradient of buffer A (0.1% TFA in H2O) and buffer B (0.1% TFA in ACN, gradient: 20-42% over 44 min) at a flow rate of 50 ml/min at 40 °C. The relevant fractions were pooled and lyophilized. The final product was characterized by analytical HPLC-MS (A01).

Purification Method 2 (P02)

Crude peptides were purified by reversed phase HPLC using a Waters preparative HPLC with C8 column (Reprosil Gold 200 A, 5pm, 40 mm x 250 mm), preparative pumps (waters 2545), UV/VIS detector (Waters 2489) and a Waters fraction collector III. The mobile phase was run with a gradient of buffer A (0.1% TFA in H2O) and buffer B (0.1% TFA in ACN, gradient: 35-45% B over 10 min) at a flow rate of 50 ml/min at RT. Relevant fractions were analysed, pooled and lyophilized. The final product was characterized by analytical UPLC-MS (A02).

Analytical Method 1 (A01)

Peptide purity and mass were determined by analytical HPLC-MS on a Kinetex C8 column (Phenomenex, 100 A, 2.6 pm, 4.6 mm x 150 mm) using a Waters Acquity HPLC System equipped with 3100 Mass Detector. Analysis was performed by gradient elution with buffer A (0.3% TFA in H2O) and buffer B (0.24% TFA in ACN) at a temperature of 40 °C. Details of the gradient and flow rates are summarized in the table below. Retention times and masses were recorded. Analytical Method 2 (A02)

Analytical UPLC-MS was performed on a Waters Acquity class H using a Waters Acquity UPLC C18 column (peptide CSH™ 130A, 1.7 pm, 2.1 mm x 100 mm) and a gradient flow of buffer C (0.3% TFA in H ₂ 0) and buffer D (10% H ₂ 0 + 0.3 % TFA in ACN; 38-48% D over 14 min) connected to a SQ Detector 2 (ESI, Waters).

List of abbreviations

ACN: acetonitrile Boc: tert-butyloxycarbonyl

C18DA(tBu): 18-(tert-butoxy)-18-oxooctadecanoic acid DPBS: Dulbecco's phosphate-buffered saline DCM: dichloromethane DIC: diisopropylcarbodiimide DIPEA: diisopropylethylamine Dde: (4,4-dimethyl-2,6-dioxocyclohex-l-ylidene)ethyl DMF: N,N-dimethylformamid DODT : 3 , 6-dioxa- 1 , 8-octanedithiol Fmoc: 9H-fluoren-9-ylmethoxycarbonyl

Fmoc-OEG-OH: 2-[2-[2-(9H-fluoren-9-ylmethoxycarbonylamino)ethoxy]ethoxy] acetic acid

Fmoc-OEG-OEG-OH: 2-[2-[2-[[2-[2-[2-(9H-fluoren-9-ylmethoxycarbonyl- amino)ethoxy]ethoxy]acetyl]amino]ethoxy]ethoxy]acetic acid HTRF: homogeneous time resolved fluorescence IBMX: 3 -isobutyl- 1 -methylxanthine iVal: 3-methylbutanoyl (isovalerianoyl)

MRT : mean residence time NMP: l-methyl-pyrrolidine-2-one Oxyma: 2-cyano-2-(hydroxyimino)acetic acid ethyl ester OEG: 2-[2-(2-aminoethoxy)ethoxy]acetic acid Pbf: 2,2,4,6,7-pentamethyldihydrobenzofuran-5-sulfonyl Rt: retention time RT : room temperature SPPS: solid-phase peptide synthesis tBu: tert-butyl Trt: trityl

TES: triethylsilane TFA: trifluoroacetic acid

The following compounds were synthesised. All compounds were obtained as TFA salts:

Compound 1 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13Q,18Q,19E,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AQPEELQE YYV SLRHYYNWLTRQRY -NH2

MW (calculated): 5001.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.17 min; m/3: 1668.0 m/4: - m/5: -

Compound 2

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,5Hyp,7K,9E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- AHypEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 5003.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.29 min; m/3: 1668.0 m/4: - m/5: -

Compound 3

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lE,15A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEE ASP AELQRYYV SLRHYYNWLTRQRY - NH2

MW (calculated): 4943.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.86 min; m/3: - m/4: 1237.0 m/5: -

Compound 4 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,22V,28Y,30W,31L,32Q]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQRYY V SLRHYYNWLQRQRY -NH2 MW (calculated): 5014.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.31 min; m/3: 1672.0 m/4: - m/5: -

Compound 5 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lE,12V,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEEV SPEELQRYYV SLRHYYNWLTRQRY - NH2 MW (calculated): 5029.7 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.02 min; m/3: - m/4: 1258.0 m/5: -

Compound 6 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lE,18Q,22V,24A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEE ASPEELQRY YV S ARHYYNWLTRQRY - NH2 MW (calculated): 4959.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.32 min; m/3: - m/4: 1241.0 m/5: - Compound 7

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,19A,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQ AYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4902.5 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.00 min; m/3: - m/4: 1226.0 m/5: -

Compound 8

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,14E,18Q,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASEEELQQ YYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4991.6 Da

Synthesis and purification methods: S02; P02

LCMS: A02; Rt: 12.75 min; m/3: 1665.3 m/4: 1248.9 m/5: 999.2

Compound 9

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,17I,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEED ASPEEIQRYYVELRHYYNWLTRQRY-

NH2

MW (calculated): 5029.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.60 min; m/3: 1677.0 m/4: - m/5: -

Compound 10 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,10A,17T,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

5 PEAD ASPEET QRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4917.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.21 min; m/3: - m/4: 1230.0 m/5: - io Compound 11

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,17I,18Q,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEED ASPEEIQQ YYV SLRHYYNWLTRQRY - is NH2

MW (calculated): 4959.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.79 min; m/3: - m/4: 1241.0 m/5: -

20 Compound 12

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13P,14G,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

25 PEED APGEELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4957.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.87 min; m/3: - m/4: 1240.0 m/5: -

30 Compound 13

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13A,18Q,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AAPEELQQ YYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4943.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.70 min; m/3: - m/4: 1237.0 m/5: -

Compound 14

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,10A,13T,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEAD ATPEELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4943.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.96 min; m/3: 1648.0 m/4: - m/5: -

Compound 15

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,17I,18Q,21E,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEED ASPEEIQRYEV SLRHYYNWLTRQRY - NH2

MW (calculated): 4953.5 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.22 min; m/3: 1652.0 m/4: - m/5: - Compound 16

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,17T,18Q,22V,23T,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEET QRYYVTLRHYYNWLTRQRY -NH2 MW (calculated): 4989.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.28 min; m/3: - m/4: 1248.0 m/5: -

Compound 17

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,15A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASP AELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4929.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.77 min; m/3: 1643.0 m/4: - m/5: -

Compound 18

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13E,18Q,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AEPEELQQ YYV SLRHYYNWLTRQRY -NH2

MW (calculated): 5001.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.27 min; m/3: - m/4: 1251.0 m/5: -

Compound 19 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,10A,18Q,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEAD ASPEELQQ YYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4901.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.90 min; m/3: 1634.0 m/4: - m/5: -

Compound 20

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13A,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AAPEELQRYYVELRHYYNWLTRQRY -NH2

MW (calculated): 5013.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.72 min; m/3: - m/4: 1253.0 m/5: -

Compound 21

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,19K,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQK YYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4959.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.62 min; m/3: - m/4: 1241.0 m/5: -

Compound 22

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,22T,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEED ASPEELQRYYTSLRHYYNWLTRQRY- NH2

MW (calculated): 4989.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.63 min; m/3: 1664.0 m/4: - m/5: -

Compound 23

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9E,17I,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-)PEED ASPEEIQRYYV SLRHYYNWLTRQRY - NH2

MW (calculated): 4929.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.82 min; m/3: - m/4: 1233.0 m/5: -

Compound 24

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,22V,26K,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEED ASPEELQRYYV SLRK YYNWLTRQRY - NH2

MW (calculated): 4978.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.70 min; m/3: 1661.0 m/4: - m/5: - Compound 25

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lE,14A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEEEAS AEELQRYYV SLRHYYNTWLTRQRY -NH2

MW (calculated): 4975.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.74 min; m/3: - m/4: 1245.0 m/5: -

Compound 26

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9P,13T,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PPED ATPEELQRYYV SLRHYYNTWLTRQRY - NH2

MW (calculated): 4969.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.74 min; m/3: - m/4: 1243.0 m/5: -

Compound 27

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9P,13E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PPED AEPEELQRYYV SLRHYYNTWLTRQRY - NH2 MW (calculated): 4997.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.11 min; m/3: 1667.0 m/4: - m/5: -

Compound 28

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,12T,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18DA-gGlu-OEGl -OEG2-)PEEDT SPEELQRYYVELRHYYNWLTRQRY - NH2

MW (calculated): 5059.7 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.77 min; m/3: 1688.0 m/4: - m/5: -

Compound 29

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,10A,l lP,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEAP ASPEELQRYYVELRHYYNWLTRQRY- NH2

MW (calculated): 4953.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.97 min; m/3: - m/4: 1239.0 m/5: -

Compound 30 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,10A,14E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

5 PEAD ASEEELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4961.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.47 min; m/3: - m/4: 1241.0 m/5: - io Compound 31

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,17T,18Q,22V,23A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-) is PEED ASPEET QRYYVALRHYYNWLTRQRY -NH2

MW (calculated): 4959.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.26 min; m/3: 1654.0 m/4: - m/5: -

20 Compound 32

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carboxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,12T,18Q,21E,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEDTSPEELQRYEV SLRHYYNWLTRQRY - 25 NH2

MW (calculated): 4983.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.46 min; m/3: - m/4: 1247.0 m/5: -

30 Compound 33

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lP,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEP ASPEELQRYYVELRHYYNWLTRQRY- NH2

MW (calculated): 5011.7 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.85 min; m/3: - m/4: 1254.0 m/5: -

Compound 34

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,22V,24T,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEED ASPEELQRYYVSTRHYYNWLTRQRY - NH2

MW (calculated): 4975.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.20 min; m/3: 1660.0 m/4: - m/5: -

Compound 35

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13A,17T,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED A APEET QRY Y V SLRH Y YNTWLTRQRY -NH2 MW (calculated): 4959.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.45 min; m/3: - m/4: 1240.0 m/5: -

Compound 36

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carboxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,8A,9E,13E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

AEED AEPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 5003.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.34 min; m/3: - m/4: 1252.0 m/5: -

Compound 37

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,17T,18Q,21E,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEED ASPEETQRYEV SLRHYYNWLTRQRY - NH2

MW (calculated): 4941.5 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 8.97 min; m/3: 1649.0 m/4: - m/5: -

Compound 38

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9P,18Q,22V,23A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PPED ASPEELQRYYVALRHYYNWLTRQRY -NH2 MW (calculated): 4939.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.75 min; m/3: - m/4: 1236.0 m/5: -

Compound 39 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9P,10A,13E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

5 PP AD AEPEELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4939.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.18 min; m/3: - m/4: 1236.0 m/5: - io Compound 40

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13T,17T,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-) is PEED ATPEET QRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4989.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 8.84 min; m/3: 1664.0 m/4: - m/5: -

20 Compound 41

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lE,13T,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEE ATPEELQRYYV SLRHYYNWLTRQRY - 25 NH2

MW (calculated): 5015.7 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.93 min; m/3: - m/4: 1255.0 m/5: -

30 Compound 42

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lA,18Q,22V,24T,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEAASPEELQRYYVSTRHYYNWLTRQRY - NH2

MW (calculated): 4931.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.35 min; m/3: - m/4: 1234.0 m/5: -

Compound 43

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carboxyheptadecanamido)butanamido]ethoxy}ethoxy)acetamido]et hoxy}ethoxy) acetamido]-[4A,7K,9E,10A,l lP,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PE AP ASPEELQRYYV SLRHYYNWLTRQRY - NH2

MW (calculated): 4911.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.86 min; m/3: 1638.0 m/4: - m/5: -

Compound 44

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,HE,18Q,22V,28Y,30W,31I]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEE ASPEELQRYYV SLRHYYNWITRQRY - NH2

MW (calculated): 5001.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.66 min; m/3: 1668.0 m/4: - m/5: -

Compound 45

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lE,16S,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEEASPESLQRYYV SLRHYYNWLTRQRY - NH2

MW (calculated): 4959.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.96 min; m/3: - m/4: 1240.0 m/5: -

Compound 46 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,HE,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEEASPEELQRYYV SLRHYYNWLTRQRY - NH2 MW (calculated): 5001.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.80 min; m/3: 1668.0 m/4: - m/5: -

Compound 47 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9P,10A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PP AD ASPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4897.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.60 min; m/3: - m/4: 1224.0 m/5: -

Compound 48 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido] - [4 A,7K, 9E, 12T, 13E, 18Q,22V,28 Y,30W,3 lL]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEDTEPEELQRYYV SLRHYYNWLTRQRY - NH2 MW (calculated): 5059.7 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.08 min; m/3: 1688.0 m/4: - m/5: - Compound 49

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,19Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQQ YYVELRHYYNWLTRQRY -NH2 MW (calculated): 5001.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.95 min; m/3: - m/4: 1251.0 m/5: -

Compound 50

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,14A,18Q,22V,28Y,30W,31I]hPYY(4-36) i Val- APEK(C 18DA-gGlu-OEGl -OEG2-)PEED AS AEELQRYYV SLRHYYNWITRQRY -

NH2

MW (calculated): 4961.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.33 min; m/3: - m/4: 1241.0 m/5: -

Compound 51

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,8A,9E,l lE,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

AEEE ASPEELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4975.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.07 min; m/3: 1659.0 m/4: - m/5: -

Compound 52 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,8A,9E,14E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

AEED ASEEELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4993.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.76 min; m/3: - m/4: 1249.0 m/5: -

Compound 53

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,10A,17I,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PE AD ASPEEIQRYYV SLRHYYNWLTRQRY - NH2

MW (calculated): 4929.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.72 min; m/3: - m/4: 1233.0 m/5: -

Compound 54

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEED ASPEELQRYYV SLRHYYNWLTRQRY - NH2

MW (calculated): 4987.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.77 min; m/3: - m/4: - m/5: 997.0

Compound 55 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,17A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEE AQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4945.5 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.25 min; m/3: 1649.0 m/4: - m/5: -

Compound 56 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,10A,13E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEAD AEPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4971.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.17 min; m/3: - m/4: 1244.0 m/5: -

Compound 57 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E, 14A, 171, 18Q,22V,28Y,30W,3 lL]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AS AEEIQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4961.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.50 min; m/3: - m/4: 1241.0 m/5: - Compound 58

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQQ YYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4959.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.87 min; m/3: - m/4: 1241.0 m/5: -

Compound 59

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,17T,18E,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18DA-gGlu-OEGl -OEG2-)PEED ASPEETEQ YYV SLRHYYNWLTRQRY -

NH2

MW (calculated): 4948.5 Da

Synthesis and purification methods: S02; P02

LCMS: A02; Rt: 13.67 min; m/3: 1651.0 m/4: 1238.0 m/5: 990.5

Compound 60

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,HA,18E,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEAASPEELEQ YYV SLRHYYNWLTRQRY -

NH2

MW (calculated): 4916.5 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.30 min; m/3: - m/4: 1230.0 m/5: -

Compound 61 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9P,17I,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PPED ASPEEIQRYYV SLRHYYNWLTRQRY - 5 NH2

MW (calculated): 4955.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.51 min; m/3: - m/4: 1240.0 m/5: - io Compound 62

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,18E,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PGED ASPEELERYYV SLRHYYNWLTRQRY - is NH2

MW (calculated): 4916.5 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.91 min; m/3: - m/4: - m/5: 983.0

20 Compound 63

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,22V,26A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEED ASPEELQRYYV SLRAYYNWLTRQRY - 25 NH2

MW (calculated): 4921.5 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.10 min; m/3: 1641.0 m/4: - m/5: -

30 Compound 64

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PGED ASPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4915.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.65 min; m/3: 1639.0 m/4: - m/5: -

Compound 65

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,22V,23E,24I,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEED ASPEELQRYYVEIRHYYNWLTRQRY- NH2

MW (calculated): 5029.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.82 min; m/3: - m/4: 1258.0 m/5: -

Compound 66

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,14A,17T,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AS AEET QRYYV SLRHYYNTWLTRQRY -NH2 MW (calculated): 4949.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.61 min; m/3: - m/4: 1238.0 m/5: - Compound 67

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carboxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,12S,13A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18DA-gGlu-OEGl -OEG2-)PEED S APEELQRYYV SLRHYYNWLTRQRY -

NH2

MW (calculated): 4987.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.60 min; m/3: - m/4: 1248.0 m/5: -

Compound 68

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,llE,18Q,19A,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18DA-gGlu-OEGl -OEG2-)PEEE ASPEELQ AYYV SLRHYYNWLTRQRY -

NH2

MW (calculated): 4916.5 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.13 min; m/3: - m/4: 1230.0 m/5: -

Compound 69

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,12S,14A,18Q,22V,28Y,30W,31L]hPYY(4-36) iVal-APEK(C18DA-gGlu-OEGl-OEG2-)PEEDSSAEELQRYYVSLRHYYNWLTRQR Y- NH2

MW (calculated): 4977.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.26 min; m/3: - m/4: 1245.0 m/5: -

Compound 70 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lA,18Q,21E,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEAASPEELQRYE V SLRHYYNWLTRQRY - 5 NH2

MW (calculated): 4909.5 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.55 min; m/3: 1638.0 m/4: - m/5: - io Compound 71

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carboxyheptadecanamido)butanamido]ethoxy}ethoxy)acetamido]et hoxy}ethoxy) acetamido]-[4A,7K,9E,l lE,15S,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEEASPSELQRYYV SLRHYYNWLTRQRY - is NH2

MW (calculated): 4959.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.96 min; m/3: - m/4: 1242.0 m/5: -

20 Compound 72

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,llE,12G,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEEGSPEELQRYYV SLRHYYNWLTRQRY - 25 NH2

MW (calculated): 4987.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.87 min; m/3: - m/4: 1248.0 m/5: -

30 Compound 73

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lE,18Q,22V,26A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEE ASPEELQRYYV SLRA YYNWLTRQRY - NH2

MW (calculated): 4935.6 Da

Synthesis and purification methods: S03; P02

LCMS: A02; Rt: 12.23 min; m/3: 1646.8 m/4: 1235.0 m/5: 988.0

Compound 74

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,14A,18Q,22V,23A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AS AEELQRYYVALRHYYNWLTRQRY -NH2

MW (calculated): 4945.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.72 min; m/3: 1650.0 m/4: - m/5: -

Compound 75

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,14A,18Q,22V,23T,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AS AEELQRYYVTLRHYYNWLTRQRY -NH2

MW (calculated): 4975.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.74 min; m/3: - m/4: 1244.0 m/5: - Compound 76

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,18Q,22V,28Y,30A,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PGED ASPEELQRYYV SLRHYYNALTRQRY -NH2

MW (calculated): 4800.4 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.12 min; m/3: - m/4: 1201.0 m/5: -

Compound 77

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,14E,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASEEELQRYYVELRHYYNWLTRQRY -NH2

MW (calculated): 5061.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.44 min; m/3: - m/4: 1266.0 m/5: -

Compound 78

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13E,18Q,19Q,22V,23T,28Y,30W,31L]hPYY(4- 36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AEPEELQQ YYVTLRHYYNWLTRQRY -NH2 MW (calculated): 5043.7 Da

Synthesis and purification methods: S03; P02

LCMS: A02; Rt: 12.75 min; m/3: 1682.6 m/4: 1262.1 m/5: 1009.7 Compound 79

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,llE,14E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEE ASEEELQRYYV SLRHYYNWLTRQRY - NH2

MW (calculated): 5033.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.66 min; m/3: - m/4: 1260.0 m/5: - Compound 80

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,llE,17T,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEE ASPEET QRYYV SLRHYYNWLTRQRY - NH2

MW (calculated): 4989.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.19 min; m/3: - m/4: 1248.0 m/5: - Compound 81

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,22V,24I,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEED ASPEELQRYYV SIRHYYNWLTRQRY - NH2

MW (calculated): 4987.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.72 min; m/3: 1664.0 m/4: - m/5: - Compound 82

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,16A,18Q,22V,23A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEALQRYYVALRHYYNWLTRQRY -NH2

MW (calculated): 4913.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.28 min; m/3: - m/4: 1229.0 m/5: -

Compound 83

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,10A,15A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEAD ASP AELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4871.5 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.85 min; m/3: - m/4: 1219.0 m/5: -

Compound 84

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,17I,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEED ASPEEIQRYYV SLRHYYNWLTRQRY - NH2

MW (calculated): 4987.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.60 min; m/3: 1664.0 m/4: - m/5: -

Compound 85

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,21A,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEED ASPEELQRY AV SLRHYYNWLTRQRY - NH2

MW (calculated): 4895.5 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.82 min; m/3: 1633.0 m/4: - m/5: -

Compound 86

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,10A,18Q,21E,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PE AD ASPEELQRYE V SLRHYYNWLTRQRY - NH2

MW (calculated): 4895.5 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.44 min; m/3: - m/4: 1224.0 m/5: - Compound 87

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carboxyheptadecanamido)butanamido]ethoxy}ethoxy)acetamido]et hoxy}ethoxy) acetamido]-[4A,7K,9E,12S,15A,18Q,22V,28Y,30W,31L]hPYY(4-36) iVal-APEK(C18DA-gGlu-OEGl-OEG2-)PEEDSSPAELQRYYVSLRHYYNWLTRQR Y-

NH2

MW (calculated): 4945.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.82 min; m/3: - m/4: 1237.0 m/5: -

Compound 88

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9P,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PPED ASPEELQRYYVELRHYYNWLTRQRY- NH2

MW (calculated): 4997.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.62 min; m/3: - m/4: 1250.0 m/5: -

Compound 89

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lE,13E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEE AEPEELQRYYV SLRHYYNWLTRQRY - NH2 MW (calculated): 5043.7 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.08 min; m/3: - m/4: 1261.0 m/5: - Compound 90

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,21E,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEED ASPEELQRYE V SLRHYYNWLTRQRY - NH2

MW (calculated): 4953.5 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.46 min; m/3: 1651.0 m/4: - m/5: - Compound 91

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13P,14A,18Q,22V,23E,28Y,30W,31L]hPYY(4- 36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-) PEED AP AEELQRYYVELRHYYNWLTRQRY -NH2

MW (calculated): 5013.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 11.44 min; m/3: - m/4: 1254.0 m/5: - Compound 92

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,12T,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18DA-gGlu-OEGl -OEG2-)PEEDT SPEELQRYYV SLRHYYNWLTRQRY - NH2

MW (calculated): 5017.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.76 min; m/3: - m/4: 1256.0 m/5: - Compound 93

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,14A,18Q,19K,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2- )PEED AS AEELQKYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4933.6 Da Synthesis and purification methods: S03; P02 LCMS: A02; Rt: 12.03 min; m/3: 1646.0 m/4: 1234.3 m/5: 987.4

Compound 94

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,17T,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEET QRYYVELRHYYNWLTRQRY -NH2 MW (calculated): 5017.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.15 min; m/3: - m/4: 1256.0 m/5: -

Compound 95

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetami do] - [4 A, 7K, 9E, 15 A, 171, 18Q,22V,28 Y,30W,3 lL]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEED ASP AEIQRYYV SLRHYYNWLTRQRY - NH2

MW (calculated): 4929.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.69 min; m/3: 1644.0 m/4: - m/5: -

Compound 96 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carboxyheptadecanamido)butanamido]ethoxy}ethoxy)acetamido]et hoxy}ethoxy) acetamido]-[4A,7K,9E,10A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEAD ASPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4929.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.70 min; m/3: 1644.0 m/4: - m/5: -

Compound 97

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,22V,23A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQRYYVALRHYYNWLTRQRY -NH2 MW (calculated): 4971.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.86 min; m/3: - m/4: 1244.0 m/5: -

Compound 98

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,22S,23A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEED ASPEELQRYY S ALRHYYNWLTRQRY - NH2

MW (calculated): 4959.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.71 min; m/3: 1654.0 m/4: - m/5: -

Compound 99

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13E,14A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AE AEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 5003.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.61 min; m/3: 1668.0 m/4: - m/5: -

Compound 100

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9P,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-)

PPED ASPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4897.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.76 min; m/3: - m/4: 1225.0 m/5: -

Compound 101

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13T,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ATPEELQRYYVELRHYYNWLTRQRY -NH2 MW (calculated): 5043.7 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.92 min; m/3: - m/4: 1261.0 m/5: -

Compound 102

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,22V,23T,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQRYYVTLRHYYNWLTRQRY -NH2 MW (calculated): 5001.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.88 min; m/3: 1668.0 m/4: - m/5: -

Compound 103 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9E,14E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASEEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4961.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.03 min; m/3: 1654.0 m/4: - m/5: -

Compound 104 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,14A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AS AEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4963.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.39 min; m/3: - m/4: 1241.0 m/5: -

Compound 105 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13E,18Q,19E,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AEPEELQEYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 5002.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.41 min; m/3: - m/4: 1251.0 m/5: - Compound 106

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9E,13T,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-)

PEED ATPEELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4943.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.03 min; m/3: - m/4: 1237.0 m/5: -

Compound 107

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,19K,22V,23A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQK YYV ALRHYYNWLTRQRY -NH2

MW (calculated): 4943.6 Da Synthesis and purification methods: S03; P02

LCMS: A02; Rt: 11.80 min; m/3: 1648.6 m/4: 1236.9 m/5: 989.5 Compound 108

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQRYYVELRHYYNWLTRQRY -NH2

MW (calculated): 5029.6 Da

Synthesis and purification methods: S03; P02

LCMS: A02; Rt: 11.47 min; m/3 : 1678.1 m/4: 1258.1 m/5: 1006.7

Compound 109

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lA,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEE AASPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4943.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.90 min; m/3: 1649.0 m/4: - m/5: -

Compound 110

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13E,17I,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AEPEEIQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 5029.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.10 min; m/3: - m/4: 1258.0 m/5: -

Compound 111 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13E,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AEPEELQRYYVELRHYYNWLTRQRY -NH2

MW (calculated): 5071.7 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.17 min; m/3: - m/4: 1268.0 m/5: -

Compound 112

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13T,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ATPEELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 5001.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.85 min; m/3: - m/4: 1252.0 m/5: -

Compound 113

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,8A,9E,13T,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

AEED ATPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4975.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.22 min; m/3: 1659.0 m/4: - m/5: -

Compound 114 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,22V,28H,29W,30Y,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQRYYV SLRHYHW YLTRQRY -NH2 MW (calculated): 5010.6 Da

Synthesis and purification methods: S02; P02

LCMS: A02; Rt: 12.38 min; m/3: 1671.2 m/4: 1253.9 m/5: -

Compound 115 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,HE,16A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEEEASPEALQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4943.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.09 min; m/3: - m/4: 1237.0 m/5: -

Compound 116 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13A,14A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AAAEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): .0 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 11.36 min; m/3: - m/4: 1238.0 m/5: - Compound 117

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9E,18Q,22V,23A,28Y,30W,31L]hPYY(4-36) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQRYYVALRHYYNWLTRQRY -NH2

MW (calculated): 4913.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.08 min; m/3: - m/4: 1228.0 m/5: -

Compound 118

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,14A,15A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AS AAELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4903.5 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.49 min; m/3: 1636.0 m/4: - m/5: -

Compound 119

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lE,18Q,22V,23T,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-) PEEEASPEELQRYYVTLRHYYNWLTRQRY -NH2 MW (calculated): 5015.7 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.99 min; m/3: - m/4: 1254.0 m/5: - Compound 120

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K, 13E, 14E, 18Q, 19E,22V,28Y,30W,3 lL]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-) PGED AEEEELQE YYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4962.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.78 min; m/3: - m/4: 1241.0 m/5: - Compound 121

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9E,10A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-) PEAD ASPEELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4871.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.95 min; m/3: 1624.0 m/4: m/5: - Compound 122

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-) PEED AAPEELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4971.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.55 min; m/3: 1658.0 m/4: - m/5: - Compound 123

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,22V,28W,29Y,30H,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQRYYV SLRHYWYHLTRQRY -NH2 MW (calculated): 5010.6 Da Synthesis and purification methods: S02; P02 LCMS: A02; Rt: 9.68 min; m/3: 1671.7 m/4: 1253.7 m/5: -

Compound 124

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13A,17I,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AAPEEIQRYYV SLRHYYNTWLTRQRY -NH2 MW (calculated): 4971.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.55 min; m/3: - m/4: 1244.0 m/5: -

Compound 125

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4 A,7K, 18Q,22 V,28 Y,30W,31 A]hP YY (4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PGED ASPEELQRYYV SLRHYYNWATRQRY -NH2 MW (calculated): 4873.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.06 min; m/3: 1625.0 m/4: - m/5: -

Compound 126 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9E,12S,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-)

5 PEED S SPEELQRYYV SLRHYYNTWLTRQRY -NH2

MW (calculated): 4945.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.89 min; m/3: 1649.0 m/4: - m/5: - io Compound 127

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9E,14A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-) is PEED AS AEELQRYYV SLRHYYNTWLTRQRY -NH2

MW (calculated): 4903.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.80 min; m/3: - m/4: 1226.0 m/5: -

20 Compound 128

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13P,14A,17I,18Q,22V,28Y,30W,31L]hPYY(4- 36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

25 PEED AP AEEIQRYYV SLRHYYNTWLTRQRY -NH2

MW (calculated): 4971.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 11.28 min; m/3: 1658.0 m/4: - m/5: -

30 Compound 129

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,17T,18Q,22T,23A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEET QRYYT ALRHYYNWLTRQRY -NH2 MW (calculated): 4961.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.22 min; m/3: - m/4: 1241.0 m/5: -

Compound 130

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,12T,14A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEEDTS AEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4991.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.30 min; m/3: 1665.0 m/4: - m/5: -

Compound 131

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,8A,9E,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

AEED ASPEELQRYYVELRHYYNWLTRQRY -NH2 MW (calculated): 5002.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.10 min; m/3: - m/4: 1251.0 m/5: -

Compound 132

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,19K,22V,23T,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQK YYVTLRHYYNWLTRQRY -NH2 MW (calculated): 4973.6 Da Synthesis and purification methods: S03; P02

LCMS: A02; Rt: 11.78 min; m/3: 1659.4 m/4: 1244.6 m/5: 995.3

Compound 133 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,17V,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEE V QRYYVELRHYYNWLTRQRY -NH2 MW (calculated): 5015.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.45 min; m/3: - m/4: 1254.0 m/5: -

Compound 134 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,17I,18Q,22T,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-) PEED ASPEEIQRYYTELRHYYNWLTRQRY - NH2 MW (calculated): 5031.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.54 min; m/3: - m/4: 1258.0 m/5: -

Compound 135 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,10A,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEAD ASPEELQRYYVELRHYYNWLTRQRY -NH2

MW (calculated): 4971.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.81 min; m/3: - m/4: 1244.0 m/5: -

Compound 136

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,10A,12S,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEAD S SPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4945.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.79 min; m/3: 1649.0 m/4: - m/5: -

Compound 137

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,22V,28Y,30W,31I]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-) PEED ASPEELQRYYV SLRHYYNWITRQRY - NH2

MW (calculated): 4987.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.56 min; m/3: 1664.0 m/4: - m/5: -

Compound 138 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9E,18Q,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-)

5 PEED ASPEELQQ YYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4901.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.03 min; m/3: - m/4: 1226.0 m/5: - io Compound 139

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lE,12S,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-) PEEES SPEELQRYYV SLRHYYNWLTRQRY - is NH2

MW (calculated): 5017.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.79 min; m/3: - m/4: 1256.0 m/5: -

20 Compound 140

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,18E,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

25 PGED ASPEELEQ YYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4888.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.01 min; m/3: - m/4: 1223.0 m/5: -

30 Compound 141

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lA,18Q,22V,24A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEE AASPEELQRYY V S ARHYYNWLTRQRY -NH2 MW (calculated): 4901.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.46 min; m/3: - m/4: 1227.0 m/5: -

Compound 142

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9P,HE,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PPEE ASPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4969.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.79 min; m/3: - m/4: 1243.0 m/5: -

Compound 143

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13T,18Q,22V,23A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ATPEELQRYYVALRHYYNWLTRQRY -NH2 MW (calculated): 4985.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.10 min; m/3: 1662.0 m/4: - m/5: -

Compound 144

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,8A,9E,18Q,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

AEED ASPEELQQ YYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4933.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.14 min; m/3: 1645.0 m/4: - m/5: -

Compound 145 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,12S,17I,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18DA-gGlu-OEGl -OEG2-) PEED S SPEEIQRYYV SLRHYYNWLTRQRY - NH2 MW (calculated): 5003.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.74 min; m/3: - m/4: 1251.0 m/5: -

Compound 146 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,HE,18Q,22V,24T,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEEEASPEELQRYYVSTRHYYNWLTRQRY -NH2 MW (calculated): 4989.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.22 min; m/3: - m/4: 1248.0 m/5: -

Compound 147 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,17T,18Q,19K,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEET QK YYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4947.5 Da

Synthesis and purification methods: S03; P02

LCMS: A02; Rt: 9.18 min; m/3: 1650.3 m/4: 1238.1 m/5: 990.4 Compound 148

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13P,14A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AP AEELQRYYV SLRHYYNTWLTRQRY -NH2

MW (calculated): 4971.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 11.20 min; m/3: - m/4: 1242.0 m/5: -

Compound 149

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lA,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEE AASPEELQRYYVELRHYYNWLTRQRY -NH2 MW (calculated): 4985.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.99 min; m/3: - m/4: 1248.0 m/5: -

Compound 150

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13E,18Q,19K,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AEPEELQK YYV SLRHYYNTWLTRQRY -NH2

MW (calculated): 5001.6 Da

Synthesis and purification methods: S03; P02

LCMS: A02; Rt: 11.23 min; m/3: 1668.7 m/4: 1251.5 m/5: 1001.2

Compound 151 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,10A,l lE,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEAE ASPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4943.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.87 min; m/3: - m/4: 1237.0 m/5: -

Compound 152

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,8A,9E,17I,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

AEED ASPEEIQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4961.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.95 min; m/3: 1654.0 m/4: - m/5: -

Compound 153

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carboxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,8V,9E,l lE,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

VEEE ASPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 5003.7 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.62 min; m/3: - m/4: - m/5: 1001

Compound 154

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lE,18Q,21E,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEEEASPEELQRYEV SLRHYYNWLTRQRY -NH2 MW (calculated): 4967.6 Da Synthesis and purification methods: S03; P02 LCMS: A02; Rt: 10.32 min; m/3: 1657.2 m/4: 1243.0 m/5: 994.4

Compound 155

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,17T,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEET QRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4975.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.19 min; m/3: 1659.0 m/4: - m/5: -

Compound 156

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,14E,18E,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASEEELEQ YYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4992.5 Da Synthesis and purification methods: S02; P02 LCMS: A02; Rt: 13.23 min; m/3: 1665.6 m/4: 1248.9 m/5: 999.2

Compound 157

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9E,17T,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEET QRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4917.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.28 min; m/3: 1640.0 m/4: - m/5: -

Compound 158 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carboxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,22V,28W,30Y,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQRYYV SLRHYWNYLTRQRY -NH2 MW (calculated): 4987.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.09 min; m/3: - m/4: 1248.0 m/5: -

Compound 159 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,10A,18E,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEAD ASPEELEQ YYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4902.5 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.13 min; m/3: - m/4: 1226.0 m/5: -

Compound 160 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,10A,13E,18Q,22T,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEAD AEPEELQRYYTSLRHYYNWLTRQRY -NH2

MW (calculated): 4973.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.10 min; m/3: - m/4: 1244.0 m/5: -

Compound 161

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13T,18Q,19Q,22V,28Y,30W,31L]hPYY(4-36) l Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ATPEELQQ YYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4973.6 Da Synthesis and purification methods: S03; P02 LCMS: A02; Rt: 11.90 min; m/3: 1658.2 m/4: 1244.5 m/5: 995.7

Compound 162

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,21E,22V,26A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQRYEV SLRAYYNWLTRQRY -NH2 MW (calculated): 4887.5 Da Synthesis and purification methods: S03; P02 LCMS: A02; Rt: 11.22 min; m/3: 1630.5 m/4: 1223.0 m/5: 978.3

Compound 163

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,llA,18Q,22V,23A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-) PEEAASPEELQRYYVALRHYYNWLTRQRY -NH2 MW (calculated): 4927.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.16 min; m/3: - m/4: 1234.0 m/5: -

Compound 164

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,14E,18Q,19E,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASEEELQEYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4992.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.65 min; m/3: 1665.0 m/4: - m/5: -

Compound 165

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,21Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQRY Q V SLRHYYNWLTRQRY -NH2 MW (calculated): 4952.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.26 min; m/3: - m/4: 1239.0 m/5: -

Compound 166 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9P,10A,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PP AD ASPEELQRYYVELRHYYNWLTRQRY -NH2 MW (calculated): 4939.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.58 min; m/3: 1647.0 m/4: - m/5: -

Compound 167 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,19Q,21E,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQQ YEV SLRHYYNWLTRQRY -NH2 MW (calculated): 4925.5 Da

Synthesis and purification methods: S03; P02

LCMS: A02; Rt: 10.95 min; m/3: 1643.1 m/4: 1232.5 m/5: 985.5

Compound 168 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13E,18Q,22V,28Y,30W,31I]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AEPEELQRYYV SLRHYYNWITRQRY -NH2 MW (calculated): 5029.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.66 min; m/3: 1678.0 m/4: - m/5: - Compound 169

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-) PEEEASPEELQRYYVALRHYYNWLTRQRY -NH2 MW (calculated): 4985.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.96 min; m/3: 1663.0 m/4: - m/5: -

Compound 170

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lE,18E,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEEEASPEELEQ YYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4974.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.18 min; m/3: - m/4: 1244.0 m/5: -

Compound 171

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13T,17I,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ATPEEIQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 5001.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.82 min; m/3: - m/4: 1251.0 m/5: - Compound 172

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13E,18Q,22V,23A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-) PEED AEPEELQRYYV ALRHYYNWLTRQRY -NH2

MW (calculated): 5013.6 Da Synthesis and purification methods: S03; P02 LCMS: A02; Rt: 12.87 min; m/3: 1672.6 m/4: 1254.6 m/5: 1003.6 Compound 173

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9E,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-) PEED ASPEELQRYYVELRHYYNWLTRQRY -NH2

MW (calculated): 4971.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.91 min; m/3: - m/4: 1245.0 m/5: -

Compound 174

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9E,13E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-)

PEED AEPEELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4971.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.27 min; m/3: - m/4: 1244.0 m/5: -

Compound 175

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13A,18Q,22V,23A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AAPEELQRYYVALRHYYNWLTRQRY -NH2 MW (calculated): 4955.6 Da Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.87 min; m/3: 1653.0 m/4: - m/5: -

Compound 176

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,14E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASEEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 5019.6 Da Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.40 min; m/3: 1674.0 m/4: - m/5: -

Compound 177

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,12S,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED S SPEELQRYYVELRHYYNWLTRQRY -NH2 MW (calculated): 5045.6 Da Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.85 min; m/3: - m/4: 1262.0 m/5: -

Compound 178 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13T,17T,18E,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ATPEETERYYV SLRHYYNTWLTRQRY -NH2 MW (calculated): 4990.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.35 min; m/3: - m/4: 1249.0 m/5: -

Compound 179

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9E,15A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASP AELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4871.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.96 min; m/3: 1625.0 m/4: m/5: -

Compound 180

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,17T,18Q,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEETQQ YYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4947.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.27 min; m/3: 1650.0 m/4: - m/5: -

Compound 181

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,10A,18Q,22V,23A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEAD ASPEELQRYYVALRHYYNWLTRQRY -NH2 MW (calculated): 4913.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.93 min; m/3: - m/4: 1229.0 m/5: -

Compound 182

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,12G,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-) PEEDGSPEELQRYYVELRHYYNWLTRQRY -NH2 MW (calculated): 5015.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 11.02 min; m/3: 1672.0 m/4: - m/5: -

Compound 183

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9P,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PPED ASPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4955.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.46 min; m/3: 1652.0 m/4: - m/5: -

Compound 184

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lA,18Q,22V,23T,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEE AASPEELQRYYVTLRHYYNWLTRQRY -NH2 MW (calculated): 4957.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.13 min; m/3: - m/4: 1241.0 m/5: -

Compound 185 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,HE,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-) PEEEASPEELQRYYVELRHYYNWLTRQRY-NH2 MW (calculated): 5043.7 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.83 min; m/3: 1683.0 m/4: - m/5: -

Compound 186 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,14A,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AS AEELQRYYVELRHYYNWLTRQRY -NH2 MW (calculated): 5003.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.55 min; m/3: - m/4: 1252.0 m/5: -

Compound 187 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,22V,27Q,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQRYYV SLRHQ YNWLTRQRY -NH2 MW (calculated): 4952.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.22 min; m/3: 1652.0 m/4: - m/5: - Compound 188

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AEPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 5031.7 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.87 min; m/3: - m/4: 1257.0 m/5: -

Compound 189

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,14E,15A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASE AELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4961.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.40 min; m/3: - m/4: 1241.0 m/5: -

Compound 190

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,HE,13P,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEEEAPPEELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 5011.7 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.32 min; m/3: - m/4: 1254.0 m/5: -

Compound 191 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-) PEED ASPEELQRY YISLRHYYNWLTRQRY - NH2

MW (calculated): 5001.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.81 min; m/3: 1668.0 m/4: - m/5: -

Compound 192

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13A,15A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AAP AELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4913.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.60 min; m/3: - m/4: 1229.0 m/5: -

Compound 193

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E, 14E, 171, 18Q,22V,28Y,30W,3 lL]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASEEEIQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 5019.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.37 min; m/3: 1674.0 m/4: - m/5: -

Compound 194

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,5Hyp,7K,9E,18Q,22V,28Y,30W,3 lT,32L]hPYY(4-36) i Val- AHypEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQRYYV SLRHYYNWTLRQRY -NH2 MW (calculated): 5003.6 Da Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 8.84 min; m/3: - m/4: 1252.0 m/5: -

Compound 195

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carboxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,16A,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEALQRYYVELRHYYNWLTRQRY -NH2 MW (calculated): 4971.6 Da Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.11 min; m/3: 1658.0 m/4: - m/5: -

Compound 196

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9P,13E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-)

PPED AEPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4939.6 Da Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.28 min; m/3: - m/4: 1236.0 m/5: -

Compound 197 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9E,10A,18Q,22V,23E,28Y,30W,31L]hPYY(4-3 6) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-)

5 PE AD ASPEELQRYYVELRHYYNWLTRQRY -NH2

MW (calculated): 4913.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.00 min; m/3: 1639.0 m/4: m/5: - io Compound 198

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13E,16A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-) is PEED AEPEALQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4971.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.31 min; m/3: - m/4: 1244.0 m/5: -

20 Compound 199

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13E,17T,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

25 PEED AEPEET QRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 5017.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.37 min; m/3: - m/4: 1255.0 m/5: -

30 Compound 200

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,8Hyp,9E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

HypEED ASPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 5003.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.53 min; m/3: - m/4: 1250.0 m/5: -

Compound 201

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9Q,13E,18Q,19E,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PQED AEPEELQEYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 5001.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.24 min; m/3: - m/4: 1251.0 m/5: -

Compound 202

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13A,18Q,19K,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AAPEELQK YYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4943.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.48 min; m/3: - m/4: 1237.0 m/5: -

Compound 203

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4929.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.83 min; m/3: 1644.0 m/4: - m/5: -

Compound 204

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,llE,17V,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEEEASPEE V QRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4987.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.62 min; m/3: 1663.0 m/4: - m/5: -

Compound 205

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,HE,18Q,19K,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEEEASPEELQK YYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4973.6 Da

Synthesis and purification methods: S03; P02

LCMS: A02; Rt: 11.05 min; m/3: 1659.2 m/4: 1244.4 m/5: 995.5

Compound 206 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18E,19Q,21E,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

5 PEED ASPEELEQ YEV SLRHYYNWLTRQRY -NH2

MW (calculated): 4926.5 Da Synthesis and purification methods: S02; P02 LCMS: A02; Rt: 11.60 min; m/3: 1643.3 m/4: 1232.8 m/5: 986.2 io Compound 207

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9E,10A,13E,18Q,22V,28Y,30W,31L]hPYY(4-3 6) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-) is PEAD AEPEELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4913.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.37 min; m/3: - m/4: 1229.0 m/5: -

20 Compound 208

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,14E,17T,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

25 PEED ASEEETQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 5007.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.63 min; m/3: 1670.0 m/4: - m/5: -

30 Compound 209

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,12S,13E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED SEPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 5045.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.09 min; m/3: - m/4: 1263.0 m/5: -

Compound 210

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,8I,9E,l lE,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-) IEEEASPEELQRYYV SLRHYYNWLTRQRY - NH2

MW (calculated): 5017.7 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 11.05 min; m/3: - m/4: 1255.0 m/5: -

Compound 211

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13T,14A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ATAEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4975.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.92 min; m/3: - m/4: 1245.0 m/5: -

Compound 212

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,12T,13A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEEDTAPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 5001.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.56 min; m/3: - m/4: 1251.0 m/5: -

Compound 213 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,llE,12T,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEEETSPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 5031.7 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.79 min; m/3: 1678.0 m/4: - m/5: -

Compound 214 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,14E,18Q,22V,23A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASEEELQRYYVALRHYYNWLTRQRY -NH2 MW (calculated): 5003.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.70 min; m/3: 1668.0 m/4: - m/5: -

Compound 215 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,15A,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASP AELQRYYVELRHYYNWLTRQRY -NH2 MW (calculated): 4971.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.86 min; m/3: - m/4: 1244.0 m/5: - Compound 216

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9E,18E,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELEQ YYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4902.5 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.24 min; m/3: 1635.0 m/4: - m/5: -

Compound 217

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,15A,18Q,22V,23A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASP AELQR YYV ALRHYYNWLTRQRY -NH2 MW (calculated): 4913.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.99 min; m/3: 1639.0 m/4: m/5: -

Compound 218

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,12S,18Q,22V,23A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED S SPEELQR Y Y V ALRHYYNWLTRQRY -NH2

MW (calculated): 4987.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.00 min; m/3: - m/4: 1247.0 m/5: -

Compound 219 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEEEAAPEELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4985.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.41 min; m/3: - m/4: 1247.0 m/5: -

Compound 220

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lA,14A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEE AAS AEELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4917.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.70 min; m/3: - m/4: 1230.0 m/5: -

Compound 221

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13P,14E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED APEEELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 5029.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 11.00 min; m/3: - m/4: 1258.0 m/5: -

Compound 222

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,14A,18Q,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AS AEELQQ YYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4933.5 Da Synthesis and purification methods: S02; P02

LCMS: A02; Rt: 13.32 min; m/3: 1645.5 m/4: 1234.4 m/5: 987.4

Compound 223

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,HA,13E,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEE AAEPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4985.6 Da Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.21 min; m/3: - m/4: 1247.0 m/5: -

Compound 224

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,l lE,18E,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PGEE ASPEELEQ YYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4902.5 Da Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.12 min; m/3: 1634.0 m/4: - m/5: -

Compound 225 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,13E,18E,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PGED AEPEELEQ YYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4930.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.96 min; m/3: 1644.0 m/4: - m/5: -

Compound 226

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lA,17T,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEEAASPEET QRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4931.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.26 min; m/3: 1645.0 m/4: - m/5: - Compound 227

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,8A,9E,18E,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

AEED ASPEELEQ YYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4934.5 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 10.38 min; m/3: - m/4: 1235.0 m/5: -

Compound 228

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,19Q,22V,26A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQQ YYV SLRAYYNWLTRQRY -NH2

MW (calculated): 4893.5 Da

Synthesis and purification methods: S03; P02

LCMS: A02; Rt: 12.98 min; m/3: 1632.6 m/4: 1224.3 m/5: 979.6

Compound 229

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,22V,24A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQRYY V S ARHYYNWLTRQRY -NH2 MW (calculated): 4945.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.27 min; m/3: 1650.0 m/4: - m/5: -

Compound 230

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,17I,18Q,22V,23A,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEEIQR YYV ALRHYYNWLTRQRY -NH2

MW (calculated): 4971.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.81 min; m/3: - m/4: 1243.0 m/5: - Compound 231

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13T,18Q,19K,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ATPEELQK YYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4973.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.79 min; m/3: - m/4: 1245.0 m/5: -

Compound 232

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9P,18Q,22V,23E,28Y,30W,31L]hPYY(4-36) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-)

PPED ASPEELQRYYVELRHYYNWLTRQRY -NH2 MW (calculated): 4939.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.71 min; m/3: - m/4: 1235.0 m/5: -

Compound 233

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lA,18Q,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEEAASPEELQQ YYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4915.5 Da

Synthesis and purification methods: S03; P02

LCMS: A02; Rt: 12.58 min; m/3: 1639.6 m/4: 1230.1 m/5: 984.0

Compound 234

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,6A,7K,9E,l lE,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- AP AK(C 18D A-gGlu-OEGl -OEG2-)

PEEEASPEELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4943.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 9.96 min; m/3: 1649.0 m/4: - m/5: -

Compound 235

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,14Hyp,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASHypEELQRYYV SLRHYYNTWLTRQRY -NH2 MW (calculated): 5003.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.28 min; m/3: - m/4: 1252.0 m/5: -

Compound 236 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxyheptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,l lE,13P,14A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEEEAP AEELQRYYV SLRHYYNWLTRQRY -NH2

MW (calculated): 4985.6 Da

Synthesis and purification methods: SOI; P01

LCMS: A01; Rt: 11.15 min; m/3: - m/4: 1247.0 m/5: -

Compound 237

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,18Q,22V,23E,24V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPEELQRYYVEVRHYYNWLTRQRY -NH2 MW (calculated): 5015.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.60 min; m/3: 1672.0 m/4: - m/5: -

Compound 238

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,8T,9E,l lE,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

TEEE ASPEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 5005.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.89 min; m/3: 1669.0 m/4: - m/5: -

Compound 239

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,14E,18Q,21E,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASEEELQRYEV SLRHYYNTWLTRQRY -NH2 MW (calculated): 4985.5 Da Synthesis and purification methods: S02; P02 LCMS: A02; Rt: 11.55 min; m/3: 1662.9 m/4: 1247.5 m/5: 998.0

Compound 240

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,16A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED ASPE ALQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4929.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.96 min; m/3: 1643.0 m/4: - m/5: -

Compound 241

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetami do] - [4 A, 7K, 9E, 1 IE, 171, 18Q,22V,28Y,30W,3 lL]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEEASPEEIQRYYV SLRHYYNWLTRQRY - NH2

MW (calculated): 5001.6 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 9.70 min; m/3: - m/4: 1251.0 m/5: -

Compound 242

N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2 -{2-[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,10A,14A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEAD AS AEELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4903.5 Da Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.72 min; m/3: - m/4: 1226.0 m/5: -

Compound 243 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,HE,18Q,19Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)PEEEASPEELQQ YYV SLRHYYNWLTRQRY - NH2 MW (calculated): 4973.6 Da

Synthesis and purification methods: S03; P02

LCMS: A02; Rt: 11.78 min; m/3: 1659.0 m/4: 1244.6 m/5: 995.5

Compound 244 N{alpha-4}-(3-methylbutanoyl)-N{epsilon-7}-[2-(2-{2-[2-(2-{2 -[(4S)-4-carboxy-4-(17- carb oxy heptadecanami do)butanami do] ethoxy } ethoxy)acetami do] ethoxy } ethoxy) acetamido]-[4A,7K,9E,13E,15A,18Q,22V,28Y,30W,31L]hPYY(4-36) i Val- APEK(C 18D A-gGlu-OEGl -OEG2-)

PEED AEP AELQRYYV SLRHYYNWLTRQRY -NH2 MW (calculated): 4971.6 Da

Synthesis and purification methods: SOI; P01 LCMS: A01; Rt: 10.08 min; m/3: 1658.0 m/4: - m/5: -

The following compound disclosed as Compound 38 in WO 2016/198682 A1 was synthesized as reference:

Ref. 1 i Val-RPEK(C 18D A-gGlu-OEGl -OEG2-)PGED ASPEELQRYYVSLRHYYNWLTRQRY -NH2 (SEQ ID NO: 249)

Further compounds were synthesized as references:

Ref. 2 iVal-RPEK(C 18D A-gGlu-OEGl -OEG2-)

PGED ASPEELQRYYV SL AHYYNWLTRQRY -NH2 (SEQ ID NO: 250)

Ref. 3 iVal-RPEK(C 18D A-gGlu-OEGl -OEG2-)

PGED ASPEELQRYYV SLRAYYNWLTRQRY -NH2 (SEQ ID NO: 251)

Ref. 4 iVal-RPEK(C 18D A-gGlu-OEGl -OEG2-) PGED ASPEELQRYYV SLRHYYNWLT AQRY -NH2 (SEQ ID NO: 252)

Ref. 5 iVal-RPEK(C 18D A-gGlu-OEGl -OEG2-)

PGED ASPEELQRYYV SLRHYYNWLTRQ AY -NH2 (SEQ ID NO: 253)

The structure of Ref. 1 is - except for alanine at position 4 - identical to Compound 64. This R4A mutation leads to a compound that shows much higher solubility at pH 6.2 (0.5 mg/ml for Ref. 1 vs. 8.7 mg/ml for compound 64). At the same time high binding affinity and receptor activity are maintained for compound 64 (see Table 2). Other arginine to alanine mutations at different positions (R25A in Ref. 2; R33A in Ref. 4; R35A in Ref. 5) or histidine to alanine mutation at position 26 (H26A in Ref. 3) negatively affect binding affinity and receptor activity or physical stability of the resulting compounds.

Table 2. n.d.: not determined EXAMPLES

The following examples demonstrate certain specific embodiments of the present invention. The following examples were carried out using standard techniques that are well known and routine to those of skill in the art, except where otherwise described in detail. Example 1: Radioligand binding competition assays (RLB)

The filtration RLB assay was carried out in 96-well plates in a final volume of 100 mΐ per well. Freeze-dried test peptides were dissolved in 100% dimethyl sulfoxide (DMSO) to stock solutions of ImM and serial dilutions were performed in assay buffer (50mM HEPES, 5mM MgCh, ImM CaCh, pH 7.4) containing 0.2% ovalbumin. IOmI/well of the test peptide solution was added to the plates to give final concentrations ranging from ImM to 3pM. Subsequently, 10 mΐ of human ¹²⁵ I-PYY(l-36) (Perkin Elmer) in assay buffer containing 0.2% ovalbumin was added to wells to give a final concentration of 0.02nM. Next, 80pL membranes (HTS066M, ChemiSCREEN™ Human Neuropeptide Y2 Receptor Membrane Preparation, CHEMICON) were added to each well to give a final protein concentration of 0.5pg/well. The plates were sealed and incubated at room temperature for 2 hours in a plate shaker set at 400 rpm. The incubation was stopped by vacuum filtration onto 0.5% poly ethylene amine (PEI) presoaked GF/C filters using a 96-well FilterMate™ harvester (Perkin Elmer) followed by four washes with 300pl/well ice-cold wash buffer (50mM HEPES, 500mM NaCl, pH7.4). Filter plates were then dried for 60 min at room temperature and the bottom of the plates was sealed with backing tape UniFilter-96. Finally, 50pl/well scintillation counter cocktail (Microscint20, Packard) was added and the radioactivity was counted in the Packard TopCount NXT scintillation counter. IC50 values (the half maximal inhibitory concentration of the agonist) were calculated by nonlinear regression analysis of sigmoidal dose-response curves. Ki values for binding affinity were acquired by the Cheng- Prusoff equation (Ki=IC ₅ o/(l+[L]/Kd), where Kd is the previously measured receptor specific dissociation constant (for NPY2R=0.07nM) and [L] is ¹²⁵ I-PYY(l-36) radioligand concentration.

The RLB results are summarized in Table 3, below.

Table 3 In general, the data from the RLB assay is predictive for the acute food intake inhibition in mice (Experiment 6).

Example 2: HTRF cAMP Gi assay

The Homogenous Time Resolved fluorescence (HTRF) technology optimized for Gi coupled receptors has thoroughly been described in Cisbio cAMP Gi kit manual. Briefly, the production of intracellular cAMP will generate a competition between unlabeled cAMP and exogenously added d2-cAMP for anti-cAMP antibodies conjugated to cryptate. CHO- K1 cells stably expressing the human NPY1, NPY2, NPY4 and NPY5 receptors were used with the cells brought to life from a frozen stock immediately before assay performance 2000 cells per well were applied for all four NPY receptor subtype assays. A 384-well format was used applying a total volume of 20 mΐ using 5 mΐ cells, 2.5 mΐ peptide agonist, 2.5 mΐ forskolin and 5 mΐ of each of the fluorophores. Cells were incubated with agonist peptides (11 points concentration response curves) and forskolin (-90% activity level, 3- 11 mM forskolin) for 40 min at 37°C using DPBS containing 0.5 mM IBMX as stimulation buffer. After addition of HTRF® detection reagents and incubation with shaking (2400 rpm) for one hour at room temperature signals at 620 and 665 nm (raw counts: ratio of 665/620) were detected. Concentration-response evaluation of compounds was performed with 11 concentrations of agonist peptides (covering 3 decades). EC50 values were calculated by nonlinear regression using sigmoid concentration-response with variable slope.

The in vitro activity results (expressed as EC50 values) are summarized in Table 4, below.

Table 4 Example 3 : Solubility determination

Peptides (as TFA salts) were weighed out in a filter unit (Mini-UniPrep Syringeless Filter 0.45 pm, Whatman), and 0.1 M sodium diphosphate buffer at pH 6.4 or 7.0 was added to achieve 10 mg/ml final concentration. The peptide was dissolved by shaking the filter unit horizontally at 600 rpm for 2 hours at room temperature. The sample was filtered, to remove any insoluble particles and diluted to 1 mg/ml in 50% acetonitrile. The control was prepared by weighing out the corresponding peptide and dissolving it in 50% acetonitrile to final concentration of 1 mg/ml. Both the control and sample were analysed with reversed phase chromatography. The area under the peak of the sample was compared to the control and the solubility was calculated based on that ratio.

The pH was measured and recorded for each sample. Typically, buffer pH dropped by 0.2 to 0.3 pH units due to the TFA content of the peptide. UPLC method:

System: UltiMate 3000 UPLC, ThermoFisher Mobile phase A: 5% acetonitrile, 95% water, 0.03% trifluoracetic acid. Mobile phase B: 95% acetonitrile, 5% water, 0.03% trifluoracetic acid. Flow: 1 ml/min

Gradient: 0-100% mobile phase B (2 mins.)

Column: Kinetix, 5 pm C8, 100 A, 50 x 2.1 mm Column temperature: 50°C

The results from the solubility determination are summarized in Table 5, below.

Table 5

Example 4 DLS studies Aggregation combined with particle growth in peptide solutions was detected by dynamic light scattering (DLS). Test peptides (5 mg/ml) were dissolved in 50 mM phosphate buffer with EDTA (0.05 mg/ml) which is adjusted to a final pH of 7.2. Solutions were filtered through a 0.2 pm filter and shaken with a lab shaker at approx. 150 rpm at room tempera ture for 5 to 7 days. Samples were analyzed with a particle size analyzer (DLS, Horiba Nano Particle Analyzer SZ-100) at day 0 and at the end of the study. Formation of aggregates was detected by an increase in particle size over time and rated as OK, indicating no increase in particle size, and NOK, indicating an increase in particle size.

The results from the DLS studies are summarized in Table 6.

Table 6

Example 5: Mouse PK

Pharmacokinetic parameters of the test compounds were determined after intravenous administration to NMRI mice.

Male NMRI mice were obtained either from Charles River (Germany) or from Janvier (France) weighing approximately 30 to 40 g. Mice were housed in standard cages with light cycle of 12-hour dark and 12-hour light. Standardized food and water were offered ad libitum to the animals during the whole experimental period.

The respective peptide was dissolved in 50 mM phosphate buffer (pH 7.0) containing 5% mannitol. Intravenous doses of 30 nmol/kg were given via a tail vein. Serial blood samples were collected from the vena sephena into tubes containing EDTA as anticoagulant at different time points up to 48h post dosing. After centrifugation for approximately 5 minutes, plasma samples were transferred to 96-well PCR plates, immediately frozen and kept at approximately -20°C until analyzed for plasma concentration by liquid chromatography mass spectrometry (LC-MS/MS). Individual plasma concentration-time profiles were analyzed by a non-compartmental approach, and the resulting pharmacokinetic parameters were determined. Mouse MRT of the PYY analogues according to the invention that have been measured were comparable to Ref. 1 and show very long half-lives as compared to the half-life of hPYY(3-36). Example 6: Effect on acute food intake in normal NMRI mice

Male NMRI mice were obtained from Charles River (Charles River, Research Models & Services Germany GmbH) or from JanVier (JanVier Labs, France) at 5 weeks of age. The animals were group housed 4 mice pr. cage under a 12/12 h dark-light cycle, light off at 3 PM. Room temperature was controlled to 21 °C ± 1 °C, with 60 % ± 20% humidity. Animals had ad libitum access to regular rodent chow (KLIBA Nafag 3430 or Altromin 1324, Brogaarden, Denmark) and tap water.

Animals were transferred 5-7 days before the start of the study to a real-time food intake monitoring system, HM-2 system (MBRose, Denmark), to allow acclimatization to experi- mental conditions. As the animals were uniquely identified with microchips, each individual animal was identified by its microchip upon entry and exit from the food channel. Randomization of the mice for each study group (n=7-8) was based on body weight measured the day before the start of the study. A vehicle-treated (50mM phosphate buffer pH7 with 5% Mannitol) group was included in each experiment. Six hours before the start of the night phase animals were fasted. One hour before the dark phase animals were dosed once subcutaneously (10 nmol/kg) with test peptide. Food intake was reported hourly for a period of 24h. The food intake of the treated groups was normalized (in %) to the average food intake of the group receiving vehicle (Table 7). Statistical significance was evaluated using One-way analysis of variance with Turkey’s multiple comparison test. P < 0.05 was considered statistically significant.

Table 7 Example 7 : Activity after incubation in solutions at different pH values

Peptides (as TFA salts) were weighed out in a filter unit (Mini-UniPrep Syringeless Filter 0.45 pm, Whatman), and 0.1 M sodium diphosphate buffer at pH 6.4 or 7.4, respectively, or 0.2 M TRIS buffer at pH 8.3 was added to achieve 10 mg/ml final concentration. The peptide was (partially) dissolved by shaking the filter unit horizontally at approx. 400 rpm for 2 hours at room temperature. The sample was filtered to remove any insoluble particles. The filtrate was subsequently subjected to the binding assay as described in Example 1.

The apparent binding affinity (Ki) reported in Table 8 is calculated based on an assumed concentration of 10 mg/ml. Compounds of the invention are active in the binding assay after incubation in solutions at different pH values, including pH 6. This demonstrates the fundamental feasibility of a liquid formulation of the compounds according to the invention at -pH 6 (in the pH range from ~6 to ~8).

Contrary hereto, after incubation at -pH 6, solutions of Ref. 1 (after filtration) show a weak response in the binding assay (apparent significant (>35x) affinity loss due to low solubility of Ref. 1 in buffered media at pH 6). Therefore, the low intrinsic solubility of Ref. 1 at -pH 6 limits the formulation space in the physiological pH range of 6-8 of a liquid formulation of Ref. 1.

Table 8