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Kwee Hyun Suh, Suwon-Si KR

Kwee Hyun Suh, Suwon-Si KR

Patent application numberDescriptionPublished
20090036683METHOD FOR PREPARING CLOPIDOGREL 1,5-NAPHTHALENEDISULFONATE OR HYDRATE THEREOF - The present invention relates to a method for preparing clopidogrel 1,5-naphthalenedisulfonate or a hydrate thereof, which comprises reacting a clopidogrel-acid addition salt with disodium 1,5-naphthalenedisulfonate or its hydrate in water, or a mixture of water and an organic solvent. High quality clopidogrel 1,5-naphthalenedisulfonate can be prepared by the inventive method by way of using non-corrosive disodium 1,5-naphthalenedisulfonate.02-05-2009
20090209576PHARMACEUTICAL COMPOSITION CONTAINING CLOPIDOGREL CAMPHORSULFONATE OR POLYMORPHIC FORMS THEREOF - A pharmaceutical composition of the present invention which comprises clopidogrel camphorsulfonate of formula (I) or its polymorphic forms as an active ingredient is useful for treating or preventing a platelet aggregation-associated disease.08-20-2009
20090258908Crystalline S-Omeprazole Strontium Hydrate, Method For Preparing Same, And Pharmaceutical Composition Containing Same - This invention provides a crystalline S-omeprazole strontium hydrate for the prevention or treatment of gastric acid-related diseases, which has high optical purity, theremostability, solubility and nonhygroscopicity, a method for preparing same, and a pharmaceutical composition containing same.10-15-2009
20090318701METHOD PREPARATION CLOPIDOGREL AND INTERMEDIATES USED THEREIN - Optically pure clopidogrel can be prepared in a high yield by optically resolving a racemic form of the compound of formula (II) using an optically active amine to form the optically active form of the compound of formula (III) or its acid-addition salt; and methylating the compound of formula (III) or its acid-addition salt.12-24-2009
20100099884METHOD OF PREPARING S-(-)-AMLODIPINE OR A SALT THEREOF AND AN INTERMEDIATE USED THEREIN - The present invention provides a novel method for preparing S-(−)-amlodipine having a high optical purity or a salt thereof and an intermediate used therein.04-22-2010
20100120888ATORVASTATIN STRONTIUM SALT AND PHARMACEUTICAL COMPOSITION COMPRISING SAME - This invention provides atorvastatin strontium salt or its hydrates or polymorphs having improved water solubility, which is useful for the prevention or treatment of hyperlipidemia and hypercholesterolemia, and a pharmaceutical composition comprising same.05-13-2010
20100137367NOVEL CRYSTALLINE BEPOTASTINE METAL SALT HYDRATE, METHOD FOR PREPARING SAME, AND PHARMACEUTICAL COMPOSITION COMPRISING SAME - The present invention discloses a non-hygroscopic crystalline bepotastine metal salt hydrate, a method for preparing same, and a pharmaceutical composition comprising same for treating or preventing a histamine-mediated disease or an allergic disease.06-03-2010
20100168433PROCESS FOR PREPARING BEPOTASTINE AND INTERMEDIATES USED THEREIN - A process for stereospecific preparation of bepotastine of formula (I) and novel intermediates used therein having formulae (II) to (IV) are provided. The inventive process comprises subjecting (RS)-4-[(4-chlorophenyl)(2-pyridyl)methoxy]piperidine to a reaction with a 4-halobutanoic acid l-menthyl ester, halo being chloro, bromo or iodo, in an organic solvent in the presence of a base to produce (RS)-bepotastine l-menthyl ester of formula (II), conducting a reaction of the compound of formula (II) with N-benzyloxycarbonyl L-aspartic acid in an organic solvent to induce selective precipitation of bepotastine l-menthyl ester.N-benzyloxycarbonyl L-aspartate of formula (III), filtering the precipitates formed in step 2) to isolate the compound of formula (III), treating the compound of formula (III) with a base to liberate bepotastine l-menthyl ester of formula (IV), and hydrolyzing the compound of formula (IV) in the presence of a base. The inventive process can provide bepotastine having a high optical purity of not less than 99.5% in a high yield, and thus, is useful in the development of anti-histamines and anti-allergic agents.07-01-2010
20110046383CRYSTALLINE S-OMEPRAZOLE STRONTIUM HYDRATE, METHOD FOR PREPARING SAME, AND PHARMACEUTICAL COMPOSITION CONTAINING SAME - Disclosed are a crystalline S-omeprazole strontium hydrate for the prevention or treatment of gastric acid-related diseases, which has high optical purity, theremostability, solubility and nonhygroscopicity, a method for preparing same, and a pharmaceutical composition containing same.02-24-2011

Patent applications by Kwee Hyun Suh, Suwon-Si KR