4,9(11),17(20)-pregnatriene-3-ones

Details 4,9(11),17(20)-pregnatriene-3-ones 4,9(11),17(20)-pregnatriene-3-ones

1992-11-04

1994-03-15

Cintins, Marianne M.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540 34, 552602, C07J 700, C07J 7500, C07J 3300

Patent

active

052947041

ABSTRACT:
A process for the production of a compound of the formula ##STR1## wherein R is an acyl group of 1 to 8 carbon atoms. The compound is formed through an intermediate compound of the formula ##STR2## wherein R.sub.1 is selected from the group consisting of methyl, phenyl, tolyl, and xylyl and wherein K is a protective group selected from the group consisting of ##STR3## in which n is 2 or 3 and the wavy line means that the group SO.sub.2 --R.sub.1 may have either isomeric form or are mixtures thereof.

REFERENCES:
patent: 4189430 (1980-02-01), Shephard

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