异名/同义词 | 6.BETA.-HYDROXY-SPIRONOLACTONE PREGN-4-ENE-21-CARBOXYLIC ACID, 7-(ACETYLTHIO)-6,17-DIHYDROXY-3-OXO-, .GAMMA.-LACTONE, (6.BETA.,7.ALPHA.,17.ALPHA.)- S-((2R)-6.BETA.-HYDROXY-3,5-DIOXO-3,4-DIHYDRO-5H-SPIRO(ANDROST-4-ENE-17,2-FURAN)-7.ALPHA.-YL) ETHANETHIOATE SPIRONOLACTONE IMPURITY G [EP IMPURITY]
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