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鉴于炔诺酮在动物及人体显示抗生育活性,作者将炔诺酮(1)经17β-OH酰化后制成17α-炔基-17β-乙酰基-19-失碳雄甾-4-烯-3-酮肟(3)及有关酮肟或酮肟酯类(4～13),再经重排制得3-氮杂-17α-炔基-17β-乙酰基-19-失碳-A-扩环雄甾-4-烯-4-酮(14)。
In view of the anti-fertility activity of norethindrone in animals and humans, the authors acylated 17 n-alkyn-17β-acetyl-19-nor-carbono-androst- Ketoxime (3) and related ketoxime or ketoxime ester (4-13), and rearranged to give 3-aza-17α-alkynyl-17β-acetyl-19-nor-A Cyclic androst-4-en-4-one (14).