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(17)-alkynyl-(17)-hydroxyl (4,15)-oestradienones and derivs.-- inhibit the progestational agents of ovulation and implantation
(17)-alkynyl-(17)-hydroxyl (4,15)-oestradienones and derivs.-- inhibit the progestational agents of ovulation and implantation
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机译：（17）-炔基-（17）-羟基（4,15）-雌二醇及其衍生物。-抑制促排卵和着床的孕激素
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摘要
DELTA 15-Steroids of the formula IMAGE wherein R1 is a hydrogen atom, trialkylsilyl or acyl; R2 is ethynyl, chloroethynyl or propinyl; and X is an oxygen atom, IMAGE or NOR4 wherein R3 is a hydrogen atom or acyl and R4 is a hydrogen atom, acyl, alkyl or tetrahydropyranyl, possess progestational and ovulation and nidation inhibiting activities.
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机译：式的DELTA 15-类固醇，其中R 1为氢原子，三烷基甲硅烷基或酰基; R 2为乙炔基，氯乙炔基或丙炔基; X是氧原子，或NOR4，其中R3是氢原子或酰基，R4是氢原子，酰基，烷基或四氢吡喃基，具有孕酮，排卵和抑制硝化活性。
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