[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][=Branch1][C][=O][C@][Branch2][Branch1][C][C][C][C@@H1][C@@][Ring1][Branch1][Branch2][Ring2][Branch2][C][C@@H1][Branch2][Ring1][Ring2][C][=C][C][C][C][=Branch1][C][=O][C][=C][Ring1][#Branch1][C][C][C@@H1][Ring1][#C][Ring1][O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N][Branch1][C][C][C][C][O][C][=Branch1][C][=O][C]"}, {"from": "gpt", "value": "The molecule is a 20-oxo steroid obtained by acetylation of the 17-hydroxy group of (11beta,17alpha)-17-acetyl-11-[4-(dimethylamino)phenyl]-3-oxoestra-4,9-dien-17-ol (ulipristal). A selective progesterone receptor modulator, which is employed as an emergency contraceptive. It has a role as a contraceptive drug, a progestin and a progesterone receptor modulator. It is a 3-oxo-Delta(4) steroid, a steroid ester, an acetate ester, a 20-oxo steroid and a tertiary amino compound. It is functionally related to an estradiol."}]