SMILES: C[C@]12CC[C@@H](C[C@H]1CC[C@@H]3[C@@H]2CC[C@H]4[C@]35[C@H](O5)C[C@@H]4C6=COC(=O)C=C6)O
Description: The molecule is a steroid lactone that has been used in the treatment of preeclampsia. A synthetic bufadienolide it is an antagonist of marinobufagenin (MBG) and differs from it by replacement of its 5beta-OH and 13beta-Me groups by hydrogen. It is a steroid lactone and an epoxy steroid. It derives from a bufanolide.