Pregna-1,4-diene-3,20-dione-16-17-acetal-21 esters, process...

Details Pregna-1,4-diene-3,20-dione-16-17-acetal-21 esters, process... Pregna-1,4-diene-3,20-dione-16-17-acetal-21 esters, process...

C - Chemistry, Metallurgy

07

J

C07J 71/00 (2006.01) A61K 31/58 (2006.01) C07J 5/00 (2006.01)

Patent

CA 2050812

The present invention relates to compounds of the formula Image in the form of an R epimer, an S epimer, or a stereoisomeric mixture of the R and S epimers in terms of the orientation of the substituents on the carbon atom at positron 22, novel intermediates and a method of their preparation by hydrolysis-ketalization, and use of such compounds as drugs and/or therapeutic agents.

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