发明授权
US4584288A 6,6-eth ylene-15,16-methylene-3-oxo-17.alpha.-pregn-4-ene-21,17-carbolactones, processes for the production thereof, and pharmaceutical preparations containing them 失效
6,6-亚乙基-15,16-亚甲基-3-氧代-17α-孕-4-烯-21,17-碳内酯,其制备方法和含有它们的药物制剂

6,6-eth
ylene-15,16-methylene-3-oxo-17.alpha.-pregn-4-ene-21,17-carbolactones,
processes for the production thereof, and pharmaceutical preparations
containing them
摘要:
6,6-ethylene-15,16-methylene-3-oxo-17.alpha.-pregn-4-ene-21,17.alpha.-carbolactones of general Formula I ##STR1## wherein ##STR2## is a CC-single of CC-double bond, R.sub.1 is a hydrogen atom or a methyl group,R.sub.2 is a methyl or ethyl group, and ##STR3## exhibit strong gestagen potency and an aldosterone-antagonistic activity.
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