申请人:Schering Aktiengesellschaft
公开号:US04008253A1
公开(公告)日:1977-02-15
Bicycloalkane derivatives of the formula ##STR1## WHEREIN N IS 1 OR 2, R.sub.1 is lower alkyl, X is free or ketalized carbonyl or a free, esterified, or etherified hydroxymethylene, and Y is --S--R.sub.2, --SO.sub.m --R.sub.2, or ##STR2## wherein m is 1 or 2, R.sub.2 is alkyl, aryl, or aralkyl, R.sub.3 is hydrogen or lower alkyl, R.sub.4 is alkoxycarbonyl, or acyl or phenyl optionally substituted with lower alkoxy or benzyloxy- or acyloxy; and Z is nitrile, nitro, lower alkoxycarbonyl, lower alkanoyl, lower alkylsulfinyl, or lower alkylsulfonyl are useful intermediates in the total synthesis of steroids. The compounds are prepared by reacting a corresponding compound lacking the CH.sub.2 Y substituent with formaldehyde and a mercaptan or a sulfinic acid, followed if desired by oxidation and optional salt condensation.
Bicycloalkane衍生物的化学式为##STR1## 其中N为1或2,R.sub.1为较低的烷基,X为自由或缩醛化的羰基或自由、酯化或醚化的羟甲基,Y为--S--R.sub.2,--SO.sub.m --R.sub.2,或##STR2## 其中m为1或2,R.sub.2为烷基、芳基或芳基烷基,R.sub.3为氢或较低的烷基,R.sub.4为烷氧羰基,或酰基或苯基,可选择地取代较低的烷氧基或苄氧基或酰氧基;Z为腈、硝基、较低的烷氧羰基、较低的烷酰基、较低的烷基磺酰基或较低的烷基磺基,在类固醇的全合成中是有用的中间体。这些化合物通过将缺少CH.sub.2 Y取代基的相应化合物与甲醛和巯基或亚磺酸反应制备,然后根据需要进行氧化和可选的盐缩合。