Synonyms: Pregn-4-ene-7,21-dicarboxylic acid, 11,12-epoxy-17-hydroxy-3-oxo-, 21,17-lactone, 7-methyl ester, (7α,11α,12α,17α)-, Pregn-4-ene-7,21-dicarboxylic acid, 11,12-epoxy-17-hydroxy-3-oxo-, γ-lactone, methyl ester, (7α,11α,12α,17α)- (9CI), Spiro[11,12-epoxy-17H-cyclopenta[a]phenanthrene-17,2′(3’H)-furan], pregn-4-ene-7,21-dicarboxylic acid deriv., 11α,12α-Epoxy-7α-(methoxycarbonyl)-3-oxo-17α-pregn-4-ene-21,17-carbolactone, 9α,11α-Deepoxy-11α,12α-epoxyeplerenone, (7Alpha,11Alpha,12Alpha,17Alpha)-11,12-Epoxy-17-hydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Lactone, Methyl Ester, Pregn-4-ene-7,21-dicarboxylic acid, 11,12-epoxy-17-hydroxy-3-oxo-, 21,17-lactone, 7-methyl ester, (7α,11α,12α,17α)-, Pregn-4-ene-7,21-dicarboxylic acid, 11,12-epoxy-17-hydroxy-3-oxo-, γ-lactone, methyl ester, (7α,11α,12α,17α)- (9CI), Spiro[11,12-epoxy-17H-cyclopenta[a]phenanthrene-17,2′(3’H)-furan], pregn-4-ene-7,21-dicarboxylic acid deriv., 11α,12α-Epoxy-7α-(methoxycarbonyl)-3-oxo-17α-pregn-4-ene-21,17-carbolactone, 9α,11α-Deepoxy-11α,12α-epoxyeplerenone
