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New products osteoblasts comprising, in the position 23, a radical keto, their process of preparation, their application for the preparation of products of the series of 20 - cetopregnanes and # # this combination
New products osteoblasts comprising, in the position 23, a radical keto, their process of preparation, their application for the preparation of products of the series of 20 - cetopregnanes and # # this combination
Compounds (I): …IMAGE… in which:… R1 is hydrogen or methyl,… R2 is methyl or ethyl,… the nuclei A, B, C and D carry optionally one or more double bonds and are optionally substituted by one or more functional groups or by one or more atoms or radicals,… R is halogen, hydroxyl, alkoxy, aralkoxy, alkylthio, arylthio, aralkylthio or …IMAGE…
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