Esomeprazole salts and processes for preparation thereof
申请人:Dr. Reddy's Laboratories Ltd.
公开号:EP2000468A1
公开(公告)日:2008-12-10
There is provided salts of esomeprazole and processes for preparing it. Also provided is a polymorphic form of esomeprazole salts and process for preparing thereof.
提供埃索美拉唑盐及其制备方法。还提供埃索美拉唑盐的多态形式及其制备方法。
Process
申请人:AstraZeneca AB
公开号:US06747155B2
公开(公告)日:2004-06-08
The present invention relates to a novel process for the preparation of the magnesium salt of the (−)-enantiomer of 5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methyl]sulfinyl]-1H-benzimidazole trihydrate, i.e. S-omeprazole magnesium salt trihydrate. The present invention also relates to the S-omeprazole magnesium salt trihydrate prepared in accordance with the new process and pharmaceutical compositions containing it. Furthermore, the present invention also relates to new intermediates used in the process.
Metal-Free Synthesis of the Methanol Solvate of (<i>S</i>)-Omeprazole Potassium Salt Using (1<i>R</i>)-(−)-10-Camphorsulfonyloxaziridine: Oxidation Process Development and Optical Purity Enhancement Strategy
作者:Christine Delsarte、Romuald Santraine、Baptiste Fours、Laurent Petit
DOI:10.1021/acs.oprd.7b00362
日期:2018.3.16
The results of our process development studies to synthesize the methanol solvate of (S)-omeprazole potassium salt (1) through the enantioselective oxidation of pyrmetazole (2) using (1R)-(−)-10-camphorsulfonyloxaziridine (3) are reported. Opticalpurity enhancement was achieved by means of a reslurry from methanol, the rationale and development details of which are also described.
[EN] A PROCESS FOR PREPARING PYRIDINYLMETHYL-1H- BENZIMIDAZOLE COMPOUNDS IN ENANTIOMERICALLY ENRICHED FORM OR AS SINGLE ENANTIOMERS<br/>[FR] METHODE SERVANT A PREPARER DES COMPOSES DE PYRIDINYLMETHYL-1H-BENZIMIDAZOLE SOUS FORME D'ENANTIOMERES SIMPLES OU ENRICHIS
申请人:HETERO DRUGS LTD
公开号:WO2005105786A1
公开(公告)日:2005-11-10
The present invention relates to a process for preparing substituted sulfoxides either as a single enantiomer or in an enantiomerically enriched form. Thus, racemic omeprazole is reacted with (S)-camphorsulfonyl chloride to form a diastereomeric mixture and the diastereomers are separated by fractional crystallization, followed by deprotection to give esomeprazole.