申请人:Hoffmann-La Roche Inc.
公开号:US04045490A1
公开(公告)日:1977-08-30
A process for the preparation of 9,10-seco-steroids of the formula ##STR1## wherein R.sup.1 and R.sup.2 independently are hydrogen, amino, OR.sup.5, OCOR.sup.6 or NHCOR.sup.5 wherein R.sup.5 is hydrogen or lower alkyl and R.sup.6 is lower alkyl or phenyl; R.sup.3 is lower alkyl; R.sup.4 is oxo, ##STR2## wherein R.sup.13 is lower alkyl, lower alkoxy - lower alkylene, tetrahydropyranyl or tetrahydrofuryl, R.sup.14 is lower alkyl or aryl and R.sup.15 and R.sup.16 are lower alkyl or taken together form lower alkylene or arylene, and n is 1 or 2 is disclosed. The 9,10-seco-steroids of this invention are useful intermediates for the preparation of steroids.
一种制备式##STR1##所示9,10-seco-甾族化合物的方法,其中R1和R2独立地为氢、氨基、OR5、OCOR6或NHCOR5,其中R5为氢或低级烷基,R6为低级烷基或苯基;R3为低级烷基;R4为羰基、##STR2##其中R13为低级烷基、低级烷氧基-低级亚烷基、四氢吡喃基或四氢呋喃基,R14为低级烷基或芳基,R15和R16为低级烷基或一起形成低级亚烷基或芳基,n为1或2。本发明的9,10-seco-甾族化合物是有用的甾族化合物制备中间体。