Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Cyclopentanohydrophenanthrene ring system doai
Patent
1994-02-25
1995-07-25
Richter, Johann
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Cyclopentanohydrophenanthrene ring system doai
514176, C07J 300, C07J 500
Patent
active
054362377
ABSTRACT:
The present invention relates to 4-amino-.DELTA..sup.4 -steroids which are useful as inhibitors of 5.alpha.-reductase. The compounds are prepared by the reaction of an appropriate 4-azido steroid with triphenylphosphine in an aqueous inert solvent with heating.
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Blohm Thomas R.
Burkhart Joseph P.
Weintraub Philip M.
Cook Rebecca
Merrell Dow Pharmaceuticals Inc.
Richter Johann
Svoboda Craig G.
Wille Louis J.
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