Process for the preparation of oxime-3-steroid derivatives...

Details Process for the preparation of oxime-3-steroid derivatives... Process for the preparation of oxime-3-steroid derivatives...

C - Chemistry, Metallurgy

07

J

260/55

C07J 41/00 (2006.01)

Patent

CA 1122592

PRECIS DE LA DIVULGATION: L'invention concerne un nouveau procédé de préparation d'oximes dérivées de stéroides, de formule: Image (I) dans laquelle R est un méthyle ou un éthyle et R' un hydrogène ou un acyle, à partir d'un composé 3,5-dioxo 4,5-séco correspondant, par passage direct d'une énamine intermédiaire à l'oxime par action de l'hydroxylamine sans formation du dérivé 3-oxo .DELTA.4. L'invention concerne également des produits conçus pour la mise en oeuvre dudit procédé.

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