.DELTA..sup.15 -Steroids and pharmaceutical compositions thereof

Details .DELTA..sup.15 -Steroids and pharmaceutical compositions thereof .DELTA..sup.15 -Steroids and pharmaceutical compositions thereof

1976-10-04

1978-03-28

Roberts, Elbert L.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

Bacterium or component thereof or substance produced by said...

424241, 424243, 424240, 26039745, 26023955R, 2603974, 2603975, C07J 100, A61K 3156

Patent

active

040815374

ABSTRACT:
.DELTA..sup.15 -Steroids of the formula ##STR1## wherein R.sub.1 is a hydrogen atom, trialkylsilyl or acyl; R.sub.2 is ethynyl, chloroethynyl or propinyl; and X is an oxygen atom, ##STR2## or NOR.sub.4 wherein R.sub.3 is a hydrogen atom or acyl and R.sub.4 is a hydrogen atom, acyl, alkyl or tetrahydropyranyl, possess progestational and ovulation and nidation inhibiting activities.

REFERENCES:
patent: 3433785 (1969-03-01), Manson et al.
patent: 3475463 (1969-10-01), Phillips
patent: 4016269 (1977-04-01), Hofmeister et al.

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