Novel 11-oxo estr-gene derivatives and process for preparing...

Details Novel 11-oxo estr-gene derivatives and process for preparing... Novel 11-oxo estr-gene derivatives and process for preparing...

C - Chemistry, Metallurgy

07

J

260/24, 260/33

C07J 21/00 (2006.01) C07J 1/00 (2006.01) C07J 15/00 (2006.01)

Patent

CA 1027552

PRECIS DE LA DIVULGATION: L'invention a pour objet de nouveaux dérivés 3,3- éthylènedioxy 11-oxo 13.beta.-alcoyle gon-9-ènes et leur préparation, caractérisés essentiellement en ce que l'on époxyde en position 9,11 un gona-5 (10), 9(11)-diène correspondant, soumet le compo- sé résultant à l'action d'un acide de Lewis pour obtenir le 11- oxo gon-5(10)-ène correspondant que l'on soumet soit à l'action d'un agent d'isomérisation, soit à l'action d'un agent d'époxy- dation et puis à l'action d'une base forte. Les composés de l'invention sont utiles pour la préparation de 10-alcoyle stéroï- des.

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