Process of Preparation of Substituted Tetrafluorobenzylaniline Compound and Its Pharmaceutically Approved Salts
申请人:Hwang Tae-Seop
公开号:US20080167492A1
公开(公告)日:2008-07-10
This invention relates to a method for preparing tetrafluorobenzyl-5-aminosalicylic acid derivative and its pharmaceutically acceptable salt compounds. In particular, this invention relates to a method for preparing tetrafluorobenzyl-5-aminosalicylic acid derivative and its pharmaceutically acceptable salts by using tetrafluorobenzilidine-5-aminosalicylic acid derivative as an intermediate.