英文别名Eplerenone EP Impurity A; (1'R,2R,4'S,8'S,9'R,17'S)-4',17'-Dimethyl-3,4-dihydro-5H,14'H,19'H-spiro[furan-2,5'-[18]oxapentacyclo[8.7.2.0.0.0]nonadec[12]ene]-5,14',19'-trione; 3-Oxo-17alpha-pregn-4-ene-7alpha,9:21,17-dicarbolactone; (7α,17α)-9,17-Dihydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic Acid Di-γ-lactone; Pregn-4-ene-7,21-dicarboxylic acid, 9,17-dihydroxy-3-oxo-, 7,9:21,17-dilactone, (7α,17α)-; (2'R,7R,8R,9R,10S,13S,14S)-10,13-Dimethyl-7,8,11,12,13,14,15,16-octahydro-1H,3'H-spiro[9,7-(epoxymethano)cyclopenta[a]phenanthrene-17,2'-furan]-3,5',19(2H,4'H,6H,10H)-trione 
