Synonyms: Pregn-4-ene-7,21-dicarboxylic acid, 17-hydroxy-3-oxo-, γ-lactone, 7-methyl ester, (7α,17α)-, Pregn-4-ene-7,21-dicarboxylic acid, 17-hydroxy-3-oxo-, γ-lactone, methyl ester, (7α,17α)- (9CI), Spiro[17H-cyclopenta[a]phenanthrene-17,2′(5’H)-furan], pregn-4-ene-7,21-dicarboxylic acid deriv., 17-Hydroxy-3-oxo-17α-pregn-4-ene-7α,21-dicarboxylic acid methyl ester γ-lactone, 17-Hydroxy-7α-(methoxycarbonyl)-3-oxo-17α-pregn-4-ene-21-carboxylic acid lactone, 7α-(Methoxycarbonyl)canrenone, Mexrenone, SC 25152, ZK 32055, 7α-(Methoxycarbonyl)-3-oxo-17α-pregn-4-ene-21,17-carbolactone