11.beta.-Substituted-.DELTA..sup.4,9 -estradienes

Details 11.beta.-Substituted-.DELTA..sup.4,9 -estradienes 11.beta.-Substituted-.DELTA..sup.4,9 -estradienes

1978-01-06

1980-11-11

Love, Ethel G.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

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

2602395, 26023955R, 2603973, 26039745, 424242, 424243, A61K 3158, A61K 3156, C07J 1700, C07J 100

Patent

active

042332966

ABSTRACT:
Novel steroids of the formula ##STR1## wherein R.sub.1 is linear or branched alkyl of 1 to 12 carbon atoms, unsaturated alkyl of 2 to 8 carbon atoms optionally substituted, optionally substituted aryl of 6 to 12 carbon atoms, optionally substituted aralkyl of 7 to 13 carbon atoms and a heterocycle with at least one sulfur or oxygen atom, R.sub.2 is alkyl of 1 to 4 carbon atoms, R.sub.3 is selected from the group consisting of hydrogen, hydroxy, acyloxy of an organic carboxylic acid of 1 to 18 carbon atoms, alkoxy of 1 to 8 carbon atoms and acyl of an organic carboxylic acid of 1 to 18 carbon atoms and R.sub.4 is selected from the group consisting of hydrogen, hydroxy, alkyl and alkoxy of 1 to 8 carbon atoms, alkenyl and alkynyl of 2 to 8 carbon atoms and acyloxy of an organic carboxylic acid of 1 to 18 carbon atoms, with the proviso that R.sub.4 is not hydrogen when R.sub.1 is allyl, R.sub.2 is methyl and R.sub.3 is hydroxy having progestomimetic properties and their preparation.

REFERENCES:
patent: 3978048 (1976-08-01), Basco
Bowers et al, Tetrahedron, vol. 7 (1959), pp. 153-162.

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