An improved process for hydrogenation of 5-(substituted Benzylidene) 2,4- Thiazolidine Dione compounds to give corresponding ( +/- ) 5- (substituted Benzyl ) 2,4-Thiazolidine Dione
申请人:Cadila Pharmaceuticals Limited
公开号:EP1903042A3
公开(公告)日:2008-05-28
The present provides a preparation of (+/-) -5- [substituted. phenyl methyl ] - 2,4-thiazolidinediones from 5-[ substituted benzylidene ]-2,4-thiazolidinediones by catalytic hydrogenation using precious metal catalyst, using DMF or formic acid [ or aqueous formic acid] and perchloric acid.
目前提供了一种从5-[取代苄基亚甲基]-2,4-噻唑烷二酮经过催化加氢使用贵金属催化剂,使用DMF或甲酸[或水合甲酸]和高氯酸制备(+/-)-5-[取代苯基甲基]-2,4-噻唑烷二酮的方法。