17 alpha -Pregn-4-ene-3-oxo-21-carboxylic acid esters, process for the preparation thereof, and use thereof as medicinal agents

摘要

17 alpha -Pregn-4-ene-3-oxo-21-carboxylic acid esters of Formula I <IMAGE> I wherein C1 C2 is a CC single or C=C double bond, -A-B-is <IMAGE> <IMAGE> -C-D-is <IMAGE> and R is an alkyl or alkenyl residue of up to 6 carbon atoms, in addition to antialdosterone activity, exhibit greatly reduced antiandrogenic and progestational side effects.