Compounds suitable for use as intermediates in the preparation of Androst-3,5-dien-3-carboxy derivatives
申请人:SANKYO COMPANY LIMITED
公开号:EP0725074A2
公开(公告)日:1996-08-07
A compound of formula (IV)
and a process for the preparation of a compound of the following formula:
in which R10 is a hydroxy group, a group -OR5, in which R5 is a carboxy protecting group, a group -NR1R2, in which R1 is hydrogen, alkyl, aryl-substituted alkyl or aromatic heterocyclic-substituted alkyl and R2 is aryl-substituted alkyl, aromatic heterocyclic-substituted alkyl or diarylamino, or a group -NRR', in which R and R' are hydrogen or alkyl.
式(IV)化合物
以及制备下式化合物的工艺:
其中 R10 是羟基、基团-OR5(其中 R5 是羧基保护基)、基团-NR1R2(其中 R1 是氢、烷基、芳基取代的烷基或芳香杂环取代的烷基,R2 是芳基取代的烷基、芳香杂环取代的烷基或二芳基氨基)或基团-NRR'(其中 R 和 R' 是氢或烷基)。