19,11 .beta.-bridged steroids, their manufacture and pharmaceuti

Details 19,11 .beta.-bridged steroids, their manufacture and pharmaceuti 19,11 .beta.-bridged steroids, their manufacture and pharmaceuti

1988-12-09

1992-03-10

Dees, Jose G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Cyclopentanohydrophenanthrene ring system containing

C07J 5300, C07J 4300

Patent

active

050951297

ABSTRACT:
New 19,11.beta.-bridged steroids of the general formula I ##STR1## where R.sup.1 stands for a methyl or ethyl radical,

REFERENCES:
patent: 4447424 (1984-05-01), Teutsch et al.
Morrison et al., Organic Chemistry, 3rd Ed., Allyn & Bacon, Inc., Boston, pp. 622 and 631 (1979).
Stork et al., "Cyclization of Vinyl Radicals: A New Versatile Method for the Construction of Five- and Six-Membered Rings", J. Am. Chem. Soc., 104:2321-2323 (1982).

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