17, 20-epoxy steroids

Details 17, 20-epoxy steroids 17, 20-epoxy steroids

1997-10-08

1999-04-06

Robinson, Allen J.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540 7, 540 46, C07J 2100

Patent

active

058920285

ABSTRACT:
A compound of the formula ##STR1## wherein R is .dbd.O or ##STR2## and the rings A and B are selected from the group consisting of ##STR3## K is oxo or a protector group of oxo of the formula ##STR4## n is 2 or 3 and R.sub.1 is an ether or ester remainder, K' is oxo or a protector oxime, hydrazone or semicarbazone group and the wavy lines symbolize an isomer mixture, a process for their preparation and their use as intermediates.

REFERENCES:
patent: 2123217 (1938-07-01), Walls et al.
patent: 2813860 (1957-11-01), Lincoln et al.
patent: 3118882 (1964-01-01), Deghenghi

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