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出 处:《药学学报》1993年第5期347-351,共5页Acta Pharmaceutica Sinica
摘 要:以18-甲基-17β-羟基-17α-乙炔基-雌甾-4-烯-3-酮(18-甲基炔诺酮),17β-羟基-17α-乙缺基-雌甾-4-烯-3-酮(炔诺酮),17β-羟基-17α-乙炔基-雄甾-4-烯-3-酮(妊娠素)和17a-羟基孕甾-4-烯-3,20二酮(17α-羟基黄体酮)为原料,经NaBH,还原、脱水、双键转位和酯化等反应合成一系列3,5-甾二烯化合物,用<sup>1</sup>HNMR和MS证明了它们的结构。动物筛选结果表明,17β-丙酰氧基-17α-乙炔基-雌甾-3,5-二烯(IV<sub>b2<sub><</sub>/sub>有明显的抗早孕活性。中断早期妊娠的作用似与其雌激素活性有关。A series of gona-3,5-dienes were synthesized from norgestrel, norethisterone 17α-hydroxyprogesterone and ethisterone via reduction of α,β-unsaturated 3-ketones to allylic alcohols and dehydration with concomitant migration of the double bond. The structures of these gona-3,5-dienes were verified by MS and ~1H-NMR spectral data. Pharmacological results showed that compound IV_(b2) in this series gave rise to significant interruption of early pregnancy in mice. The mechanism of the early pregnancy terminating effect of this compound was discussed.
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