申请人:HOECHST AKTIENGESELLSCHAFT
公开号:EP0646573A1
公开(公告)日:1995-04-05
A process for the preparation of a compound of formula II
in which are
XC₁-C₆-alkyl, C₃-C₆-alkenyl, C₃-C₆-alkynyl, C₃-C₇-cycloalkyl, cycloalkylalkyl, aralkyl, heterocycle or heteroalkyl group;
R(1)hydrogen, carbobenzyloxy or tert-butyloxycarbonyl group,
ROH,
is described which comprises reacting a compound of formula I
H₂N-X-COR I
with trimethylsilyl chloride in an organic solvent,
then reacting with an organic base
and thereafter reacting with a compound of formula III
to give compound II.
描述了一种制备公式II化合物的过程,其中的XC₁-C₆-烷基,C₃-C₆-烯基,C₃-C₆-炔基,C₃-C₇-环烷基,环烷基烷基,芳基烷基,杂环或杂基基团;R(1)氢,羧苄氧基或叔丁氧羰基基团,ROH,包括反应公式I化合物 H₂N-X-COR I与三甲基氯硅烷在有机溶剂中反应,然后与有机碱反应,然后与公式III化合物反应以得到化合物II。