D-homo-19-norsteroids

Details D-homo-19-norsteroids D-homo-19-norsteroids

1975-10-14

1976-10-05

Schwartz, Gerald A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260473R, 260475SC, 260483, 260484R, 260484A, 260485L, 260611F, 2606175, 424308, 424312, 424313, 424331, 424339, 424343, C07C 4945

Patent

active

039844765

ABSTRACT:
D-Homosteroids of the formula ##SPC1##
Wherein R.sup.3 .alpha. is hydrogen, R.sup.3 .beta. is hydrogen, lower alkanoyloxy or aroyloxy and R.sup.3 .alpha. and R.sup.3 .beta. taken together are oxo; R.sup.13 is lower alkyl; R.sup.17a .beta. is hydrogen, lower alkanoyl, aroyl or lower alkyl; R.sup.17a .alpha. is hydrogen, lower alkyl, ethynyl, 1-propynyl, vinyl, chloroethynyl, butadiynyl or propadienyl and the dotted line in the A-ring denotes an additional carbon bond in either the 4,5- or 5(10)-position and processes for the preparation thereof are disclosed.
The D-homosteroids of the present invention are useful as contraceptives and regulators of the female menstrual cycle.

REFERENCES:
patent: 2324881 (1943-07-01), Ruzicka et al.
patent: 2732405 (1956-01-01), Dodson et al.
patent: 2784234 (1957-03-01), Dodson
patent: 3194832 (1965-07-01), Reimar et al.
patent: 3492338 (1970-01-01), Hader et al.
patent: 3555096 (1971-01-01), Hughes et al.

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