17-halomethylene estratrienes

Details 17-halomethylene estratrienes 17-halomethylene estratrienes

1988-12-07

1992-06-23

Shah, Mukund J.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Cyclopentanohydrophenanthrene ring system doai

514117, 514176, 540113, 552530, C61K 3156, C07J 1300

Patent

active

051243210

ABSTRACT:
17-halomethylene estratrienes of Formula I ##STR1## wherein R.sub.1 is hydrogen, a methyl or acyl group, and

REFERENCES:
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The Merck Index, Tenth Edition, 1983, p. 8921.
Bestmann, Old and New Ylid Chemistry, Pure & App. Chem., vol. 52, pp. 771-788, Pergamon Press Ltd., 1980.
Huggins et al., "Induction and Extinction of Mammary Cancer", Science, Jul. 27, 1962, vol. 137, No. 3526, pp. 257-262.
Burton et al., "A Practical Synthesis of Fluoromethyltriphenylphosphonium Salts," Journal of Fluorine Chemistry, 27 (1985) 85-89.
Hofle et al., "4-Dialkylaminopyridine als hochwirksame Acylierungskatalysatoren", Neue synthetische Methoden (25), pp. 602-615.
B. Runnebaum et al., Female Contraception: Update and Trends, Springer-Verlag, Berlin, 1988, pp. 64-90, 109-121, 122-128, and 129-140.
CA:111, 214810y (1989) Preparation . . . by Jungblut Peter et al.

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