A PROCESS FOR THE PREPARATION OF 17-HYDROXY-6 BETA, 7 BETA, 15 BETA, 16 BETA -BISMETHYLENE-17 ALPHA-PREGN-4-ENE-3-ONE-21-CARBOXYLIC ACID GAMMA-LACTONE AND KEY-INTERMEDIATES FOR THIS PROCESS

The invention relates to a process for the preparation of 17-hydroxy-6beta,7beta;15beta,16beta-bismethylene-17alpha-pregn-4-ene-3-one-21-carboxylic acid gamma-lactone of formula (I) as well as to key-intermediates for this process.

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Bibliographic Details
Main Authors TUBA, ZOLTAN, GALIK, GYOERGY, MAHO, SANDOR, HORVATH, JUDIT, BALOGH, GABOR, SOEROES, BELA
Format Patent
LanguageEnglish
French
German
Published 24.03.2010
Subjects
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
STEROIDS
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Summary:The invention relates to a process for the preparation of 17-hydroxy-6beta,7beta;15beta,16beta-bismethylene-17alpha-pregn-4-ene-3-one-21-carboxylic acid gamma-lactone of formula (I) as well as to key-intermediates for this process.
Bibliography:Application Number: EP20050797368