3-Amino-5-o-chlorobenzyl-4,5,6,7-tetrahydrothieno[3,2-c]-pyridine-2-carboxylic acid derivative and process for producing the same
申请人:FUJI PHOTO FILM CO., LTD.
公开号:EP0573955A1
公开(公告)日:1993-12-15
Intermediates of the following formulae (I) and (II):
wherein R¹ represents a hydrogen atom or an alkyl group
wherein R¹ represents a hydrogen atom or an alkyl group, and R² represents a hydrogen atom, an alkylcarbonyl group, arylcarbonyl group, alkylsulfonyl group, arylsulfonyl group, alkoxycarbonyl group or aryloxycarbonyl group
and acid salt thereof are useful for synthesizing ticlopidine hydrochloride from an inexpensive and easily available compound in short steps.
Intermediates of the following formulae (I) and (II): ##STR1## wherein R.sup.1 represents a hydrogen atom or an alkyl group ##STR2## wherein R.sup.1 represents a hydrogen atom or an alkyl group, and R.sup.2 represents a hydrogen atom, an alkylcarbonyl group, arylcarbonyl group, alkylsulfonyl group, arylsulfonyl group, alkoxycarbonyl group or aryloxycarbonyl group and acid salt thereof are useful for synthesizing ticlopidine hydrochloride from an inexpensive and easily available compound in short steps.