Synonyms: Pregna-4,20-diene-21-carboxylic acid, 7-(acetylthio)-17-hydroxy-3-oxo-, γ-lactone, (7α,17α)- (9CI), Spiro[17H-cyclopenta[a]phenanthrene-17,2′(5’H)-furan], pregna-4,20-diene-21-carboxylic acid deriv., (2’R)-7α-(Acetylthio)-5’H-spiro[androst-4-ene-17,2′-furan]-3,5′-dione, (2′R)-7α-(Acetylsulfanyl)-5′H-spiro[androst-4-ene-17,2′-furan]-3,5′-dione, Δ20-Spironolactone
