16-Dimethylaminomethylene-3-methoxy-1,3,5-(10)-estratrien-17-one, a
申请人:Schering, Aktiengesellschaft
公开号:US04298538A1
公开(公告)日:1981-11-03
16-dimethylaminomethylene-3-methoxy-1,3,5(10)-estratrien-17-one is a valuable new preparative intermediate which may be used, e.g., to prepare 17.beta.-hydroxy-16.beta.-ethyl-4-estren-3-one or 16.beta.-ethylestradiol.
Novel estradiol derivatives of the formula ##STR1## wherein R.sup.1 means an alkyl group of two or more carbon atoms, and R.sup.2 is hydrogen or an acyl group, have antiestrogen activity and are useful as antiestrogen drugs.