申请人:Sandoz Ltd.
公开号:US04806656A1
公开(公告)日:1989-02-21
The invention provides compounds of formula I ##STR1## wherein R is C.sub.1-4 alkoxy-C.sub.2-4 alkyl of which the C.sub.1-4 alkoxy group is separated by at least 2 C-atoms from the N-atom to which R is bound, each of R.sub.2 and R.sub.4 independently is CH.sub.3 or C.sub.2 H.sub.5 and R.sub.5 is H or CH.sub.3, the preparation of such compounds and the use of such compounds for the preparation of N-(thien-3-yl)-chloroacetamides.
本发明提供了式I的化合物:##STR1## 其中,R为C.sub.1-4烷氧基-C.sub.2-4烷基,其中C.sub.1-4烷氧基与R结合的N原子至少相隔2个C原子,R.sub.2和R.sub.4各自独立地为CH.sub.3或C.sub.2 H.sub.5,R.sub.5为H或CH.sub.3,以及制备这种化合物和使用这种化合物制备N-(噻吩-3-基)-氯乙酰胺。