Verfahren zur Herstellung von ungesättigten Steroiden
申请人:SCHERING AKTIENGESELLSCHAFT
公开号:EP0023006B1
公开(公告)日:1983-03-02
US4290963A
申请人:——
公开号:US4290963A
公开(公告)日:1981-09-22
Process for preparing .DELTA..sup.9(11) and/or .DELTA..sup.16
申请人:Schering Aktiengesellschaft
公开号:US04290963A1
公开(公告)日:1981-09-22
A process for preparing a .DELTA..sup.9(11) - and/or .DELTA..sup.16 -unsaturated steroid comprises heating the corresponding steroid of the pregnane series substituted by 9.alpha.-chloro- and/or 16.alpha.-chloro- or 17.alpha.-acyloxy, in an inert, aprotic high-boiling solvent at 180.degree.-350.degree. C.