Intermediates for the preparation of .DELTA..sup.4,9(11),17(20)

Details Intermediates for the preparation of .DELTA..sup.4,9(11),17(20) Intermediates for the preparation of .DELTA..sup.4,9(11),17(20)

1996-09-06

1998-05-26

Dees, Jose G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540 30, 540 31, 540 34, 540 40, C07J 2100, C07J 3300

Patent

active

057567220

ABSTRACT:
The novel intermediates of the formula ##STR1## wherein L, K and M are as defined in the specification which are useful intermediates for the preparation of .DELTA..sup.4,9(11),16 -pregnatriene-3-ones.

REFERENCES:
patent: 3707537 (1972-12-01), Kierstead et al.
patent: 4216159 (1980-08-01), Hessler et al.

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