Process for the preparation of novel...

Details Process for the preparation of novel... Process for the preparation of novel...

C - Chemistry, Metallurgy

07

J

260/58

C07J 9/00 (2006.01)

Patent

CA 1131215

PRECIS DE LA DIVULGATION: L'invention concerne un procédé de préparation de nouveaux dérivés 3,20-dioxo 4,9-diène 21-hydroxyle stéroïdes (I): Image (I) dans laquelle X est un atome d'hydrogène ou un tritium, R1 un radical alcoyle de 1 à 3 carbones, R2 un radical alcoyle de 1 à 12 carbones, R3 un radical alcoyle de 1 à 4 carbones, sous forme d'épimère 21R ou 21S ou de leurs mélanges. Les composés de formule I sont doués d'activités progestomimétique et anti-estrogène remarquables.

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