Lambda-1,4-pregnadiene-3,20-diones

Details Lambda-1,4-pregnadiene-3,20-diones Lambda-1,4-pregnadiene-3,20-diones

1995-01-13

1995-09-19

Rizzo, Nicholas

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

Organic compounds

Cyclopentanohydrophenanthrene ring system containing

552564, C07J 700

Patent

active

054516900

ABSTRACT:
A compound of the formula ##STR1## wherein R is selected from the group consisting of hydrogen, acyl of an organic carboxylic acid of 1 to 8 carbon atoms, allyloxycarbonyl, alkoxycarbonyl and aralkoxycarbonyl of up to 8 carbon atoms and alkylsulfonyl and arylsulfonyl of up to 8 carbon atoms and their use to prepare substituted 16,17-methylenedioxy-steroids and novel intermediates.

REFERENCES:
patent: 5053404 (1991-10-01), Molnar et al.
patent: 5082835 (1992-01-01), Molnar
patent: 5310896 (1994-05-01), Devocelle et al.

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