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Matches 1 - 50 out of 8,894

Document Document Title
WO/2020/187256A1
Provided is a method for preparing β-alanine, the method comprising: preparing a β-alanine product from a reactant containing fumaric acid and aqueous ammonia in the presence of a catalyst, wherein the catalyst contains a catalyst comp...  
WO/2020/179817A1
[Problem] To provide a purification method that enables purification of a diamine compound to which none of purification methods by distillation, sublimation, or recrystallization are applicable, and that, as another purpose of the metho...  
WO/2020/169700A1
The present invention relates to two-component clear coat systems containing polyaspartic acid ester with primary amino groups and small amounts of fumaric acid dialkyl esters, to a method for preparing same and the use thereof for produ...  
WO/2020/167829A1
The present disclosure provides a method of preparing a compound of Formula I, wherein R1 is C1-C4 alkyl; R2 is C1-C4 alkyl; and R3 is selected from the group consisting of C1-C6 alkyl, (aryl)alkyl, and (heteroaryl)alkyl in >95% chemical...  
WO/2020/154891A1
The present invention provides a hydrolysis method of tert-butyl ester used in a gadolinium contrast agent. The hydrolysis method comprises the following steps: hydrolyzing the tert-butyl ester by using a catalyst; a preparation method f...  
WO/2020/155733A1
A central venous catheter, a preparation method therefor and a medical device comprising same. The central venous catheter comprises: a tube body and a coating layer formed on a surface of the tube body; the coating layer is formed by a ...  
WO/2020/003152A3
A polymer having a backbone comprising a polyhydroxylated polymer cross linked by a C3 to C8 diacid.  
WO/2020/144030A1
The present invention relates to a process for the synthesis of organosulfate salts of amino acid esters comprising the steps of reacting at least one lactam with at least 3 carbon atoms in the lactam ring with sulfuric acidin an aqueous...  
WO/2020/145627A1
Provided is a method for preparing glufosinate, comprising the steps of: preparing a first intermediate compound by reacting L-homoserine in the presence of a first acid catalyst; preparing a second intermediate compound by reacting the ...  
WO/2020/141141A1
The invention relates to novel cocrystals of (R)-Baclofen and processes for preparation thereof, and in particular to cocrystals of (R)-Baclofen with cinnamic acid, benzoic acid, salicylic acid and ferulic acid. It also refers to pharmac...  
WO/2020/140309A1
The present invention provides a method for preparing a 3-hydroxybutyrate amino acid salt compound, comprising: (1) adding ethyl 3-hydroxybutyrate or methyl 3-hydroxybutyrate into a reaction vessel, taking water as a solvent, adding a ba...  
WO/2020/134137A1
The present application relates to the field of drug synthesis, and disclosed thereby is a method for synthesizing R-3-chloroalanine methyl ester hydrochloride, comprising the following steps: 1) allowing d-serine to react with paraforma...  
WO/2020/127349A1
The present invention relates to a crumbly phase composition containing on total weight of the composition (i) 70 – 87 wt% of organic compounds and salts thereof containing 85 to 100 wt% on total organic compounds and salts thereof of ...  
WO/2020/095983A1
It was discovered that a cyclic sulfamidate could be produced by reacting an aminoacid derivative with a cyclization reagent. In addition, it was discovered that an O-substituted serine derivative could be produced by reacting the cyclic...  
WO/2020/070508A1
An amorphous form of a chelating agent is provided, in particular wherein the chelating agent comprises ethylenediaminetetraacetic acid/edetic acid (EDTA), diethylenetriaminepentaacetic acid/pentetic acid (DTPA), nitrilotriacetic acid (N...  
WO/2020/031201A1
The present invention relates to highly pure 6-aminohexanoic acid of formula-1 which is free of organic volatile impurities, caprolactam impurity and improved process for its preparation thereof. The present invention also relates to an ...  
WO/2020/029762A1
A preparation method for a fused tricyclic γ-amino acid derivative and an intermediate thereof, and a method for preparing an intermediate of the fused tricyclic γ-amino acid derivative. The fused tricyclic γ-amino acid derivative has...  
WO/2020/024763A1
Provided are a photocurable hydrophilic polymer, a coating composition based thereon, a hydrophilic lubricant coating, and a product. The photocurable hydrophilic polymer is formed by the copolymerization of a polymerizable photosensitiv...  
WO/2019/013954A8
There is disclosed a process for the separation of long chain amino acid and long chain dibasic acid, comprising: (1) mixing the mixed amide derivatives with an aqueous solution of ammonia or ammonium hydroxide in the presence or absence...  
WO/2020/021077A1
The present invention relates to processes for the preparation of polymorphic form D2 of robenacoxib and to pharmaceutical formulations thereof. The polymorphic form of robenacoxib obtained by the processes of the present invention is ch...  
WO/2020/007774A1
The present invention relates to a process to prepare esters of an amino carboxylic acid of the formula (I) wherein R is an alkyl group containing 5 to 16 carbon atoms that may be branched or linear, k is a value of 1 to 3, m is an integ...  
WO/2020/006340A1
The invention relates to chemically reactive and/or biologically active compounds, reagents and compositions thereof. More particularly, the invention provides novel reagents that are useful in chemical synthesis, functionalization, deli...  
WO/2020/004043A1
The present invention provides a method which uses an aniline derivative as a starting material, and which is capable of producing an α-azidoaniline derivative or an α, α'-diazide derivative. The present invention comprises a method f...  
WO/2019/243087A1
The present invention relates to a process for the preparation of Droxidopa by means of an improved enzymatic reduction of a compound of formula (II): (II), wherein R1, R2 is independent hydrogen, acetyl, R3 is hydrogen, a C1-C4 linear o...  
WO/2019/232706A1
A method for preparing a pregabalin chiral intermediate (R)-3-(carbamoylmethyl)-5-methylhexanoic acid by a biological enzyme method. In particular, the method comprises: reacting Compound (I) 3-isobutylglutaric acid, as a raw material, w...  
WO/2019/235493A1
The present invention provides a method by which a diaminobenzoic acid ester and a benzimidazole derivative are able to be produced more easily with use of lower cost materials. The present invention includes a method for producing a dia...  
WO/2019/233671A1
The invention relates to a method for producing a composition containing at least one metal amino acid compound, in which method - a basic compound of a divalent metal is first reacted together with an alpha amino acid in a molar relatio...  
WO/2019/228849A1
Process for making solid methylglycine diacetate (MGDA) alkali metal salt (a), said process comprising the steps of (A) providing a 40 to 60% by weight aqueous solution of said MGDA salt having a temperature in the range of from50 to 90...  
WO/2019/221192A1
The present invention provides a method for producing an amino acid aminoalkyl ester or an inorganic acid salt thereof by reacting a compound represented by general formula (I) or a compound represented by general formula (III), or a sal...  
WO/2019/219942A1
Provided is a process for producing an amine via a hydroaminoalkylation reaction of a non-aromatic C-C double bond or C-C triple bond, said process comprising a step of reacting a compound comprising a non-aromatic C-C double bond or C-C...  
WO/2019/175175A1
Method of purifying an alkali metal salt of a compound of the general Formula (I) or Formula (II) R1R2N-CHR3-COOH (I) or R1R2N-CHR3CHR3-COOH (II) wherein R1, R2 and R3 are independently H, an alkyl, an alkenyl, or a hydroxyalkyl radical ...  
WO/2019/175169A1
The application relates to a process for drying a composition comprising an alkali metal salt of a compound of general formula (I) R1 R2N- CHR3-COOM or formula (II) R1 R2N-CHR3CHR3-COOM, in particular N,N- dimethyl glycinate salt, and th...  
WO/2019/168269A1
The present invention relates to a bifunctional chiral organocatalytic compound having excellent enantioselectivity, a preparation method therefor, and a method for producing a non-natural gamma amino acid from a nitro compound by using ...  
WO/2019/157426A1
The invention relates to an overall enantio-specific synthesis of 4-chlorokynurenine compounds, in particular L-4-chlorokynurenine, with improved yields. Large-scale syntheses are disclosed. The invention also relates to novel intermedia...  
WO/2019/154151A1
The present invention relates to an intermediate compound of formula II-1 or formula II-2 or a salt thereof, and a preparation method therefor. The present invention further relates to a process for synthesizing a compound of formula I b...  
WO/2019/137083A1
Disclosed in the present invention are a one-step process for producing a nylon 5X salt and a prepared high-purity nylon 5X salt. The process comprises: subjecting a lysine fermentation liquid to ion exchange and desorption to obtain a p...  
WO/2019/135189A1
The present invention provides an improved process for preparation of the L-threo-(2S,3R)-3-(3,4-dihydroxyphenyl)serine (I) or a salt thereof, which is known as Droxidopa; comprising (a) recovery of the by-product compound (V) (as descri...  
WO/2019/118072A1
There is disclosed a process for the purification of long chain amino acids by recrystallization in an aqueous solution of organic carboxylic acid in the absence or presence of solvent, comprising: (1) dissolving a long chain amino acid ...  
WO/2019/110371A1
The application relates to a process for the synthesis of organic sulfonic acid salts of amino acid esters comprising the steps of (i) reacting at least one lactam with at least 3 carbon atoms in the lactam ring with at least one organic...  
WO/2019/080155A1
The present invention relates to a conjugate salt of N,N-dimethylglycine and a metal organic acid, a preparation method therefor, and an application thereof. The conjugate salt of N,N-dimethylglycine and a metal organic acid has the foll...  
WO/2019/080009A1
Disclosed are an N,N-dimethylglycine organic acid polyvalent metal ion compound salt or a solvate thereof, and an application thereof in preparation of novel feed additives and feeds. Also disclosed is a feeding composition comprising th...  
WO/2019/066412A1
The present invention relates to a method for preparing a glutamate-based surfactant. More specifically, the present invention provides a method for preparing a glutamate-based surfactant, the method being very economical and being capab...  
WO/2019/057627A1
The present invention relates to a method for purifying polyaspartic acid ester compositions and to the provision of polyaspartic acid ester compositions that contain 0.01 to < 2% by weight fumaric acid dialkyl esters.  
WO/2019/037591A1
The present invention relates to a melphalan hydrochloride crystal form, a preparation method therefor and an application thereof. The preparation method is convenient to operate, has a short reaction period, reduces environmental pollut...  
WO/2019/040177A1
There is disclosed a process for the purification of long chain amino acids by recrystallization in an aqueous solution of organic carboxylic acid in the absence or presence of solvent, comprising: (1) dissolving a long chain amino acid ...  
WO/2019/034114A1
Provided is a composition containing L-carnitine-β-hydroxybutyrate wherein the L-carnitine and β-hydroxybutyrate compounds in the molecule exist in the form of an intramolecular salt, and the composition is used for losing weight and p...  
WO/2018/033883A3
The invention provides for a synthesised ester intermediate of formula 1. Formula 1 Wherein and wherein R may be a saturated or unsaturated fatty acid (C12-C20).  
WO/2018/231747A3
Methods of synthesizing fluoroquinolones such as ciprofloxacin are provided. The methods utilize affordable materials, reduce the number of synthesis steps and provide high yields.  
WO/2019/016745A1
Aspects of the present application relate to process for the preparation of Pyrrolidine derivatives useful as key intermediates for active ingredients. Specific aspects relate to alternate process for the preparation of Upadacitinib inte...  
WO/2019/013954A1
There is disclosed a process for the separation of long chain amino acid and long chain dibasic acid, comprising: (1) mixing the mixed amide derivatives with an aqueous solution of ammonia or ammonium hydroxide in the presence or absence...  

Matches 1 - 50 out of 8,894