发明授权
US3965128A 6.beta.,7.beta.-Epoxy-1.alpha.,2.alpha.-methylen-D-homo-4-pregnen-3,20-di ones 失效
6 {62,7 {62-环氧-1 {60,2 {60-亚甲基-D-同-4-孕烯-3,20-二酮

6.beta.,7.beta.-Epoxy-1.alpha.,2.alpha.-methylen-D-homo-4-pregnen-3,20-di
ones
摘要:
New 6.beta.,7.beta.-epoxy-17.alpha.-hydroxy or acyloxy-1.alpha.,2.alpha.-methylen-D-homo-4-pregnen-3,20-diones having surprising progestational activity are disclosed.
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