发明授权
US4307088A 1-Hydroxy steroids, a process for the production thereof, and pharmaceutical preparations containing them 失效
1-羟基类固醇,其制备方法和含有它们的药物制剂

1-Hydroxy steroids, a process for the production thereof, and
pharmaceutical preparations containing them
摘要:
1-Hydroxy steroids of formula I ##STR1## wherein R.sub.1 and R.sub.2 are independently hydrogen or alkanoyl of 1-8 carbon atoms are distinguished by strong progestational activity and only very minor androgenic side effects.
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