Methods for making 3-O protected morphinones and 3-O-protected morphinone dienol carboxylates
申请人:EURO-CELTIQUE S.A.
公开号:EP1864987A2
公开(公告)日:2007-12-12
The present invention relates to a method for making a compound of formula (II):
comprising, allowing a compound of formula (I):
to react in the presence of a compound of formula R1SR2 and a chlorine-containing reagent under conditions sufficient to make the compound of formula (II); wherein
R1 and R2 are each independently -(C1-C20)alkyl, -(C3-C8)cycloalkyl or -phenyl; and
R3 is a protecting group.
本发明涉及一种制造式(II)化合物的方法:
包括:允许式(I)化合物:
在足以制得式(II)化合物的条件下,在式 R1SR2 化合物和含氯试剂存在下反应; 其中
R1 和 R2 各自独立地为-(C1-C20)烷基、-(C3-C8)环烷基或-苯基;以及
R3 是保护基团。