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Matches 51 - 100 out of 11,578

Document Document Title
WO/2023/104063A1
A preparation method for ioversol hydrolysate, comprising: with an industrial iodide as a raw material, subjecting the industrial iodide and acetoxyacetyl chloride to an acetoxyacetylation reaction, hydrolyzing same, and regulating the a...  
WO/2023/104017A1
The present disclosure provides compounds that can inhibit the type III secretion system (TTSS) to decrease the pathogenesis of gram-negative bacteria. These compounds may have wide applications for treating bacteria diseases caused by g...  
WO/2023/099283A1
The present invention is related to a method for purifying crude α-sulfo fatty acid salt obtained by the reaction of fatty acid and sulfur oxides, comprising the following steps: a) diluting the crude α-sulfo fatty acid in a solvent an...  
WO/2023/098592A1
The present invention provides a carbon-loaded iron-based catalyst, and a preparation method thereof and a use. The preparation method comprises dissolving ferric chloride in water, adding activated carbon, adding sodium hydroxide at 60-...  
WO/2023/093560A1
The present invention discloses a method for preparing an N-fatty acyl amino acid surfactant by means of high-temperature melting and direct condensation. The method of the present invention comprises: mixing a fatty acid, a catalyst and...  
WO/2023/090086A1
Provided are a secondary monohydrofluoroalkane selective adduct and a method for producing the same. A compound represented by formula (3) is produced by means of a method including a step for reacting a compound represented by formula (...  
WO/2023/090859A1
The present invention relates to: a novel method for preparing an isoxazole derivative, which is useful as a farnesoid X receptor (FXR, NR1H4) agonist; a novel intermediate used in the preparation method; and a method for preparing the p...  
WO/2023/078277A1
An intermediate of a polyamine derivative, a preparation method therefor, and a use thereof. The intermediate is easy to prepare and high in purity; and when the intermediate is used for preparing the polyamine derivative, the obtained p...  
WO/2023/078722A1
The present invention relates to new specific butyrate compounds to a new and improved synthesis of specific butyrates as well their use. Butyrate compounds are very useful compounds, either as such or as intermediates in organic synthesis.  
WO/2023/073502A1
The present invention relates to methods for preparation of 2-amino-5-chloro-N-3-dimethylbenzamide compound of Formula (IV) and pyrazole-carboxylate compound of Formula (VI), an intermediates useful for preparation of certain anthranilam...  
WO/2023/073080A1
The present invention relates to a process for preparing aromatic acyl derivatives of formula (I) using methanesulfonic acid. The invention further relates to methods for preparing biological active ingredients, such as paracetamol.  
WO/2023/072998A1
The present invention relates to an improved method for preparing and isolating hydrogen cyanide, said method comprising the reaction of methane (e.g. natural gas), ammonia and optionally oxygen, wherein C2-C10 nitrile by-products, such ...  
WO/2023/061101A1
Disclosed are an HDAC/MAO-B dual inhibitor, the preparation thereof, and an application in the preparation of a drug and neuroprotective antioxidant for preventing and treating related diseases by inhibiting monoamine oxidase and histone...  
WO/2023/063466A1
Disclosed is a method for preparing a ceramide compound. Specifically, provided is a method for synthesizing ceramide by reaction of phytosphingosine and a methyl ester-based compound represented by chemical formula 2, as starting materi...  
WO/2023/060955A1
Provided in the present invention is a synthetic method for cetyl-PG hydroxyethyl palmitamide. The method comprises the following steps: firstly, mixing 1,3-dichloropropanol and hexadecyl alcohol under the action of a catalyst and an alk...  
WO/2023/056957A1
A solvent system of a working solution for producing hydrogen peroxide by means of an anthraquinone method. The solvent system comprises the following components or are composed of the following components in parts by volume: A) 2-60 par...  
WO/2023/054350A1
The present invention provides a production method for purified dichloroacetic acid and an efficient production method for nucleic acid molecules using same. Specifically, the present invention provides: a production method for purified ...  
WO/2023/053877A1
Provided are: a compound suitable for use as a photodisintegrable base for resist compositions which have satisfactory sensitivity to actinic energy, e.g., EB or EUV, have excellent resolution in lithography, and can give fine patterns r...  
WO/2023/055050A1
The present invention relates to: a method for removing a compound of chemical formula 1, comprising the step of adding a metal hydroxide compound to a composition comprising chemical formula 1 and a water-soluble solvent; and a method f...  
WO/2023/045371A1
Disclosed is a novel cationic lipid compound represented by formula (A), or an isomer, an N-oxide, a pharmaceutically acceptable salt, or a prodrug thereof. Further disclosed are a preparation method, a composition and an application of ...  
WO/2023/046815A1
The invention is related to a process for preparing a iodinating X-rays contrast agent. More specifically, it relates to a process for the preparation of N,N'-bis-(2,3-dihydroxypropyl)-5-hydroxy-2,4,6-triiodo-1,3-b enzenedicarboxamide (I...  
WO/2023/039941A1
Provided are an N,N,N-triacyl-2,4,6-triaminotoluene compound nucleating agent, and a preparation method therefor and a use method thereof. The nucleating agent is used for polymer nucleation at high temperatures, and can effectively redu...  
WO/2023/041515A2
The invention provides a method for preparing an aqueous (meth)acrylamide solution, said method comprising the following steps: (a) adding the following components (i) to (iii) to a reactor to obtain a composition for bioconversion: (i) ...  
WO/2023/039940A1
Disclosed is a method for preparing N,N,N-tripivaloyl-1,3,5-triaminobenzene. The method comprises: step 1, using 2,4,6-trinitrotoluene as a raw material, and reacting same with hydrogen and pivalic anhydride in sequence to obtain N,N,N-t...  
WO/2023/040106A1
Disclosed in the present invention is a preparation method for an acetamide compound by means of green visible-light catalysis. In the method, LED lamps are used as light sources to provide energy, and economically available aromatic ami...  
WO/2023/042716A1
A production method for a (meth)acrylamide compound that includes a step for reacting (meth)acrylic acid with a primary amine compound in the presence of a condensing agent to synthesize a (meth)acrylamide compound (X).  
WO/2023/041209A1
The present invention relates to a process for the preparation of spherical agglomerates of safinamide or a pharmaceutically acceptable salt thereof, to the agglomerates thus obtained and to a process for preparing a pharmaceutical compo...  
WO/2023/039068A1
The present disclosure provides intermediates for the synthesis of peptide nucleic acid (PNA) backbones and monomers, such as cyclic intermediates, and methods of making the same.  
WO/2023/036955A1
The present invention relates to the use of an M-NHC catalyst, in which M is Pd or Pt and NHC is an N-heterocyclic carbene group, comprising at least one M atom bonded to at least one N-heterocyclic carbene ligand, in the implementation ...  
WO/2023/036952A1
The present invention relates to a new palladium-based catalyst on a cerium dioxide substrate, of the formula Pd-X/Ce02, wherein X represents the empty set or a doping agent and its use in the implementation of a method for selectively p...  
WO/2023/030043A1
Disclosed are a tricyclic diterpene analogue represented by formula (I) and a preparation method therefor. By using testosterone as a raw material, and by means of methylation, ethylene glycol protection, oxidation, Baeyer-Villiger oxida...  
WO/2023/028022A1
A method of synthesizing a pharmacological compound substance by attaching a psychoactive base substance to an amino acid and creating a prodrug with modified pharmacological behavior. A prodrug made by the method. A pharmaceutical compo...  
WO/2023/025138A1
Disclosed are novel exatecan mesylate intermediates 5 and A, and a preparation method for exatecan mesylate. Raw materials in the preparation method are cheap and easy to obtain, the synthetic route of the intermediate is simple, the "on...  
WO/2023/014050A1
The present invention relates to a method for efficiently recovering dimethylformamide at high purity from a waste solution resulting from the production of a polyimide. The method according to the present invention is directed to a meth...  
WO/2023/012205A1
The present invention relates to new specific butyrate compounds to a new and improved synthesis of specific butyrates as well their use. Butyrate compounds are very useful compounds, either as such or as intermediates in organic synthesis.  
WO/2023/004687A1
Provided by the present invention is an unnatural amino acid, which is a compound having a structure as shown in formula (I) or an enantiomer thereof. Further provided by the present invention is an application of the unnatural amino aci...  
WO/2023/001267A1
A preparation method for an N-long-chain acyl amino acid dipeptide, supramolecular amino acid and corresponding salts thereof, capable of controlling the occurrence of structural reconstruction and controlling the content of long-chain f...  
WO/2023/285581A1
The present invention relates to a method of making sodium N-(8-2-Hydroxybenzoyl)amino caprylate form A, SNAC polymorphic form A having improved stability and the use of said SNAC polymorphic form A in a solid pharmaceutical dosage form-  
WO/2023/283831A1
Disclosed in the present invention is a compound having an inhibitory effect on a virus main protease (3CL protease, Mpro), which also has a significant inhibitory activity on the Mpros of SARS coronavirus (SARS-CoV) and novel coronaviru...  
WO/2023/281088A2
The present invention relates to a biological method for obtaining an MO monomer comprising an ethylenic unsaturation by bioconversion of a CN compound comprising at least one nitrile function, said CN compound being at least partially r...  
WO/2023/281081A1
The present invention relates to a method for obtaining substituted alkyl(meth)acrylamide comprising the reaction between (meth)acrylic acid or one of the esters thereof on the one hand, and a primary or a secondary alkylamine on the oth...  
WO/2023/281086A1
The present invention relates to a method for obtaining N-vinylformamide comprising the reaction between an acetaldehyde and a formamide, one of the two, preferably both, being at least partially renewable and non-fossil. The invention f...  
WO/2023/277587A1
The present specification relates to a method for preparing an N-acyl derivative by distilling a first composition comprising a compound of chemical formula 1, and using the distilled first composition, an N-acyl derivative prepared ther...  
WO/2023/275091A1
An improved preparation of non-steroidal antiandrogen drugs, such as 4-[3-[4-cyano-3- (trifluoromethyl)phenyl]-5,5-dimethyl-4-oxo-2-thioxo-1-imida zolidinyl]-2-fluoro-N-methyl- benzamide and intermediates thereof, is described.  
WO/2023/277590A1
The present specification relates to: a method for preparing alkyl-D-alaninate, the method comprising a step for distilling a composition, which includes a compound of chemical formula 3 synthesized by reacting chemical formula 1 and che...  
WO/2023/272497A1
The present application provides N,N-dihydrocarbonyl amino carboxylic acid, a preparation method therefor, and the use thereof. The N,N-dihydrocarbonyl amino carboxylic acid can act as an extracting agent for enriching rare-earth element...  
WO/2022/266919A1
Provided are an N,N-dihydrocarbyl amide carboxylic acid, a preparation method therefor and a use thereof. The N,N-dihydrocarbyl amide carboxylic acid can be used as an extractant to enrich rare earth elements from a low-concentration rar...  
WO/2022/264166A1
The present invention relates to process for the preparation of pure Salcaprozate sodium free of color impurities.  
WO/2022/265115A1
A method of producing a polypeptide compound, wherein a peptide compound represented by formula (P) is obtained by inducing an amide formation reaction between an amino-protected lactam compound represented by formula (R1) and an amino a...  
WO/2022/261634A1
Surfactant compositions and derivatives with low amounts of impurities are disclosed along with a method of making the same. A surfactant composition includes greater than 80% by weight of N-acyl amino acid surfactant of formula (I) and ...  

Matches 51 - 100 out of 11,578