Process to prepare 11.beta.,...

Details Process to prepare 11.beta.,... Process to prepare 11.beta.,...

C - Chemistry, Metallurgy

07

J

C07J 7/00 (2006.01) C07J 5/00 (2006.01) C07J 75/00 (2006.01)

Patent

CA 2448039

The present invention is a novel process for the transformation of 11.beta., 17.alpha. dihydroxy-6.alpha.-methylpregna-1,4-diene-3,20-dione 17-acetate (III), to 11.beta., 17.alpha.,21-trihydroxy-6.alpha.-methylpregna-1,4-diene- 3,20-dione 21-acetate (VI).

La présente invention concerne un nouveau procédé de transformation de 11.beta., 17.alpha. dihydroxy-6.alpha.-méthylpregna-1,4-diène,3,20-dione 17-acétate (III) en 11.beta., 17.alpha., 21-trihydroxy-6.alpha.-méthylpregna-1,4-diène,3,20-dione 21-acétate (VI).

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