申请人:Schering Aktiengesellschaft
公开号:US04725426A1
公开(公告)日:1988-02-16
17.alpha.-bromo-.alpha. and 17.alpha.-iodo-vinyl-estrane derivatives of general formula I ##STR1## wherein X is a bromine or iodine atom in Z or E position, R.sup.1 is hydrogen, hydroxy or acyloxy with up to 3 C atoms, R.sup.2 is hydrogen, alkyl with up to 3 C atoms and alkanoyl and aroyl with up to 7 C atoms, R.sup.3 is hydrogen or methyl, R.sup.4 is a hydrogen atom in the .alpha. or .beta. position, R.sup.5 is hydrogen, methyl or methoxy and R.sup.6 is hydrogen or methyl, are pharmacologically effective with a profile of action like ethinylestradiol and in the form of their radioactively labeled compounds are also valuable diagnostic media. The Z-isomers can be prepared by a new process by reaction of the corresponding 17.alpha.-ethinyl steroids with trialkyl (or phenyl) tin hydride with addition of a free radical former.
17.alpha.-溴-.alpha.和17.alpha.-碘-乙烯基-雌甾烷衍生物的一般化学式I如下:其中X是Z或E位置的溴或碘原子,R.sup.1是氢、羟基或酰氧基,碳原子数最多为3,R.sup.2是氢、碳原子数最多为3的烷基以及碳原子数最多为7的烷酰基和芳酰基,R.sup.3是氢或甲基,R.sup.4是.alpha.或.beta.位置的氢原子,R.sup.5是氢、甲基或甲氧基,R.sup.6是氢或甲基,具有药理学作用,其作用特点类似于乙炔雌二醇,并且以其放射性标记化合物的形式也是有价值的诊断介质。Z-异构体可以通过一种新的方法制备,即将相应的17.alpha.-乙炔类固醇与三烷基(或苯基)锡氢化合物反应,并加入自由基前体。