17-methylene- and 17-ethylidene-estratrienes

Details 17-methylene- and 17-ethylidene-estratrienes 17-methylene- and 17-ethylidene-estratrienes

1988-12-07

1990-12-11

Shah, Mukund J.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Cyclopentanohydrophenanthrene ring system doai

514172, 514176, 514182, A61K 3156, A61K 3157, A61K 3158

Patent

active

049771477

ABSTRACT:
A pharmaceutical preparation for treating menopausal symptoms, estrogen deficiency and hormone-dependent tumors, and for use as a contraceptive, comprises a compound of formula I ##STR1## wherein R.sub.1 is hydrogen, methyl, a tetrahydropyranyl group or an acyl group and

REFERENCES:
patent: 3946052 (1976-03-01), Crowe et al.
J. Org. Chem 46, 3326-3328 (1981).

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