7-ALPHA-SUBSTITUTED 3-OXO-17-ALPHA-PREGN-4-ENE 21-17 CARBOLACTONES, PROCESS FOR THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM
摘要
Novel 7 alpha -substituted 3-oxo-17 alpha -pregn-4-ene-21,17-carbolactones of the formula <IMAGE> wherein <IMAGE> is a CC single or CC double bond or the group <IMAGE> R7 is the group SR', R' being a hydrogen atom or a straight-chain or branched alkyl residue of 1-6 carbon atoms optionally substituted by a hydroxy or acyloxy group, the group COOR'' or the group COR'' wherein R'' is an alkyl group of 1-4 carbon atoms and <IMAGE> is a CC single bond or the group <IMAGE> have antialdosterone activity with reduced endocrinological side effects.
