Methyl (7R,8R,10S,13S,14S,17R)-10,13-dimethyl-3,5′-dioxo-1,2,3,4′,5′,6,7,8,10,12,13,14,15,16-tetradecahydro-3′H-spiro[cyclopenta[a]phenanthrene-17,2′-furan]-7-carboxylate

95716-70-4

Methyl (7R,8R,10S,13S,14S,17R)-10,13-dimethyl-3,5′-dioxo-1,2,3,4′,5′,6,7,8,10,12,13,14,15,16-tetradecahydro-3′H-spiro[cyclopenta[a]phenanthrene-17,2′-furan]-7-carboxylate

Spiro[17H-cyclopenta[a]phenanthrene-17,2′(3′H)-furan]-7-carboxylic acid, 1,2,3,4′,5′,6,7,8,10,12,13,14,15,16-tetradecahydro-10,13-dimethyl-3,5′-dioxo-, methyl ester, (7R,8R,10S,13S,14S,17R)-

(2r,7r,8r,10s,13s,14s)-methyl 10,13-dimethyl-3,5-dioxo-1,2,3,4,5,6,7,8,10,12,13,14,15,16-tetradecahydro-3h-spiro[cyclopenta[a]phenanthrene-17,2-furan]-7-carboxylate

(2′R,7R,8R,10S,13S,14S)-Methyl 10,13-dimethyl-3,5′-dioxo-1,2,3,4′,5′,6,7,8,10,12,13,14,15,16-tetradecahydro-3′H-spiro[cyclopenta[a]phenanthrene-17,2′-furan]-7-carboxylate

(7a,17a)-17-Hydroxy-3-oxo-pregna-4,9(11)-diene-7,21-dicarboxylic acid g-lactone methyl ester

(7a,17a)-17-Hydroxy-3-oxo-pregna-4,9(11)-diene-7,21-dicarboxylicacid g-lactone methyl ester

Eplerenone Intermediate

methyl (1R,3aS,3bR,4R,9aS,11aS)-9a,11a-dimethyl-5′,7-dioxo-2,3,3a,3b,4,5,7,8,9,9a,11,11a-dodecahydrospiro[cyclopenta[a]phenanthrene-1,2′-oxolane]-4-carboxylate

methyl (1R,3aS,3bR,4R,9aS,11aS)-9a,11a-dimethyl-5′,7-dioxo-3,3a,3b,4,5,8,9,11-octahydro-2H-spiro[cyclopenta[a]phenanthrene-1,2′-oxolane]-4-carboxylate

methyl (2R,2′S,9′R,10′R,11′S,15′S)-2′,15′-dimethyl-5,5′-dioxospiro[oxolane-2,14′-tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadecane]-1′(17′),6′-diene-9′-carboxylate

methyl (7R,8R,10S,13S,14S,17R)-10,13-dimethyl-3,5′-dioxospiro[2,6,7,8,12,14,15,16-octahydro-1H-cyclopenta[a]phenanthrene-17,2′-oxolane]-7-carboxylate

MFCD01244531

MFCD11112034

Pregna-4,9(11)-diene-7,21-carboxylic acid,17-hydroxy-3-oxo-g-lactone, methyl ester(7a,17a)

pregna-4,9(11)-diene-7,21-dicarboxylic acid,17-hydroxy-3-oxo,g-lactone,methyl ester