Verfahren zur Herstellung von Steroidketonen und ihrer Derivate

摘要

Cpds. I and II R = H or opt. subst. (1-6C) alkyl R' = (2-6C) alkyl R2 = (2-6C) haloalk-1-ynyl trans with respect to R' R3 = H, is not > 20C alkyl, or is not > 20C acyl Q = -CH2- or -CH2CH2- The substits. at the tert. C atom in ring C are in the trans-anti-trans consign. Y = H or acyl a) Gestagens, pituitary gonadotropin blocking agents, hormones. b) Chemical intermediates.