2-beta,19-ethylene bridged steroids as aromatase inhibitors
申请人:MERRELL PHARMACEUTICALS INC.
公开号:EP0488383A1
公开(公告)日:1992-06-03
The present invention is directed to a group of androstane compounds which contain an ethylene radical bridging the 2- and 19-positions. These compounds are useful as aromatase inhibitors and they are prepared by the cyclization of a 19-[2-(4-toluenesulfonyloxy)ethyl]androst-4-ene-3,17-dione using a strong base.
2.beta.,19-ethylene bridged steroids as aromatase inhibitors
申请人:Merrell Dow Pharmaceuticals Inc.
公开号:US05166201A1
公开(公告)日:1992-11-24
The present invention is directed to a group of androstane compounds which contain an ethylene radical bridging the 2- and 19-positions. These compounds are useful as aromatase inhibitors and they are prepared by the cyclization of a 19-[2-(4-toluenesulfonyloxy)ethyl]androst-4-ene-3,17-dione using a strong base.