Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Cyclopentanohydrophenanthrene ring system doai
Reexamination Certificate
2005-09-27
2005-09-27
Badio, Barbara P. (Department: 1616)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Cyclopentanohydrophenanthrene ring system doai
C514S177000, C514S182000, C552S514000
Reexamination Certificate
active
06949531
ABSTRACT:
Disclosed are androgenic steroids of the (14β,17α)-17-(hydroxymethyl) type. The invention relates to an improvement thereof, which is based on the presence of a β-oriented, annellated cyclopropyl group which includes carbon atoms 16 and 17 of the steroid skeleton, i.e. a 16,17β-methylene moiety. These steroids show an unexpectedly high androgenic potency.
REFERENCES:
patent: 3732209 (1973-05-01), Fahrenholtz et al.
patent: 00 53619 (2000-09-01), None
De Gooijer Marcel Evert
Leysen Dirk
Van Der Louw Jaap
Akzo Nobel N.V.
Badio Barbara P.
Blackstone William M.
Milstead Mark W.
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