申请人:Schering, Aktiengesellschaft
公开号:US04333928A1
公开(公告)日:1982-06-08
16 .alpha.-Alkyl steroids of the formula ##STR1## wherein R.sub.1 is hydrogen or methyl, R.sub.2 is hydrogen, alkyl, acyl, or glycosyl R.sub.3 is hydrogen or a substituted or unsubstituted, saturated or unsaturated lower hydrocarbon residue, and R.sub.4 is methyl, ethyl or propyl, exhibit strong progestational activity and a very low androgenic activity.
16 .alpha.-烷基类固醇的化学式为##STR1##,其中R.sub.1为氢或甲基,R.sub.2为氢、烷基、酰基或糖基,R.sub.3为氢或取代或未取代的饱和或不饱和低碳氢基残基,R.sub.4为甲基、乙基或丙基,表现出强烈的孕激素活性和非常低的雄激素活性。