4,5-Epoxy Eplerenone

Chemical Name: Methyl (1aS,4aS,4bR,5aR,6aS,7R,9aS,9bR,10R,11aS)-4a,6a-dimethyl-2,5'-dioxotetradecahydro-3H,3'H,11H-spiro[cyclopenta[7,8]phenanthro[1,10a-b:4b,5-b']bis(oxirene)-7,2'-furan]-10-carboxylate

Smile: C[C@@]([C@@]1(C[C@H]2C(OC)=O)[C@@H]3O1)(CCC3=O)[C@]45[C@]2([H])[C@@](CC[C@]6(CC7)OC7=O)([H])[C@]6(C)C[C@H]4O5