17-spirofuran-3'-ylidene steroids

Details 17-spirofuran-3'-ylidene steroids 17-spirofuran-3'-ylidene steroids

1992-12-21

1994-03-08

Killos, Paul J.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07J 2100, A01K 3156

Patent

active

052928780

ABSTRACT:
The invention relates to an antiprogestin 17- spirofuran-3'-ylidene steroid having the formula ##STR1## p0 R.sub.1 is NR.sub.2 R.sub.3, lower acyl, OH, SH, O-lower alkyl or S(O).sub.n -lower alkyl wherein n is 0-2;

REFERENCES:
patent: 4536401 (1985-08-01), Neef et al.
patent: 4900725 (1990-02-01), Nioue et al.

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