[EN] METHOD FOR PREPARATION OF 2,5-DISUBSTITUTED THIOPHENE COMPOUND<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN COMPOSÉ DE THIOPHÈNE 2,5-DISUBSTITUÉ
申请人:TOPHARMAN SHANGHAI CO LTD
公开号:WO2011079772A1
公开(公告)日:2011-07-07
A method for preparation of 2, 5-disubstituted thiophene compound I and its use for the preparation of compound V are disclosed. The said method comprises reacting compound II with compound III in the presence of a sulfur reagent to obtain compound I in a one-pot manner.