Pregna-4,9(11), 16-triene-3,20-dione derivs. preparing process

The invention relates to the compounds (I): where Hal is chlorine or bromine, R is (C1-C6)alkyl, (C7-C15)aralkyl or a silylated residue, K is a group (n = 2 or 3) and the wavy lines symbolise the possible existence of 2 isomers, to their preparation and to their application in the preparation of the...

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Bibliographic Details
Main Authors F. BRION, J. BUENDIA, C. DIOLEZ
Format Patent
LanguageEnglish
Published 15.01.1997
Edition6
Subjects
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
STEROIDS
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Summary:The invention relates to the compounds (I): where Hal is chlorine or bromine, R is (C1-C6)alkyl, (C7-C15)aralkyl or a silylated residue, K is a group (n = 2 or 3) and the wavy lines symbolise the possible existence of 2 isomers, to their preparation and to their application in the preparation of the compounds (A): where R1 is a (C1-C8)acyl and new intermediate.
Bibliography:Application Number: CN19961000574