SMILES: C[C@]12CCC(=O)C=C1[C@@H]3C[C@@H]3[C@@H]4[C@@H]2CC[C@]5([C@H]4[C@@H]6C[C@@H]6[C@@]57CCC(=O)O7)C
Description: The molecule is a steroid lactone and a 3-oxo-Delta(4) steroid. It has a role as a contraceptive drug, an aldosterone antagonist and a progestin.