New 17-halogenated 19-nor steroids, preparation process and intermediates, use as medicaments and the pharmaceutical compositions containing them
申请人:——
公开号:US20030022874A1
公开(公告)日:2003-01-30
A process for the preparation of a compound of the formula
1
wherein the substituents are defined as in the specification.
一种制备式化合物的工艺
1
其中取代基的定义见说明书。
NOUVEAUX 19-NOR STEROIDES 17-HALOGENES, PROCEDE ET INTERMEDIAIRES DE PREPARATION, APPLICATION COMME MEDICAMENTS ET COMPOSITIONS PHARMACEUTIQUES LES RENFERMANT