Spironolactone EP Impurity A

Chemical Name: S-[(2′R)-3,5′-dioxo-5′H-spiro[androst-4-ene-17,2′-furan]-7α-yl] ethanethioate (as per EP); (2′R)-7α-(Acetylthio)-5′H-spiro[androst-4-ene-17,2′-furan]-3,5′-dione (as per USP)

Synonym: NULL

Smile: C[C@@]12[C@]3(C=CC(O3)=O)CC[C@@]1([H])[C@]4([H])[C@H](SC(C)=O)CC5=CC(CC[C@]5(C)[C@@]4([H])CC2)=O