17.beta.-Difluoromethyl steroids

Details 17.beta.-Difluoromethyl steroids 17.beta.-Difluoromethyl steroids

1982-07-09

1983-11-22

Roberts, Elbert L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

26039745, 2603973, 2602395, 26023955C, 424243, C07J 100

Patent

active

044168225

ABSTRACT:
17.beta.-Difluoromethyl steroids are disclosed which have progestational, antiprogestational activity and which are useful as and male and female contraceptive agents.

REFERENCES:
patent: 3211723 (1965-10-01), Kagan
D. G. Martin, et al., The Reactions of Sulfur Tetarfluoride with Steroids, J. Org. Chem. 27, 3164 (1962).
D. G. Martin, et al., The Synthesis of 6.alpha.-Difluoromethyl Steroids, J. Org. Chem. 27, 4086 (1962).
Fieser and Fieser Reagents for Organic Synthesis, Wiley Interscience, vol. 6, p. 183.
Fieser and Fieser Reagents for Organic Synthesis, Wiley Interscience, vol 8, p. 166.
G. A. Olah, et al., Synthetic Methods and reactions I. Selenium Tetrafluoride and its Pyridine Complex, Convenient Fluorinating Agents for Fluorination of Ketones, Aldehydes, Amides, Alcohols, Carboxylic Acids, and Anhydrides, J. Am. Chem. Soc. 96, 925 (1974).
G. A. Boswell J. Org. Chem. 31, 991 (1966).
Chem. Abst. 85, 124237g.

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