11-Difluoromethylene steroids

Details 11-Difluoromethylene steroids 11-Difluoromethylene steroids

1984-08-31

1986-01-28

Roberts, Elbert L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

26039745, C07J 100

Patent

active

045670005

ABSTRACT:
11-Difluoromethylene steroids having progestational and anti-progestational properties, useful as anti-fertility agents, are disclosed as well as a process for making the 11-difluoromethylene steroids.

REFERENCES:
patent: 3450720 (1969-06-01), Lamcette
patent: 3457285 (1969-07-01), Board
patent: 3504002 (1970-03-01), Boswell
patent: 3705182 (1972-12-01), Edwards
patent: 3927046 (1975-12-01), van den Broek
patent: 4277468 (1981-07-01), Hofmeister et al.
patent: 4292251 (1981-09-01), Overbeek
M. Obayashi et al., Tetrahedron Letters, 23, 2323 (1982).

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