[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is under investigation in clinical trial NCT00555919 (ZK 230211 in Postmenopausal Woman With Metastatic Breast Cancer)."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C@H1][C][C@][Branch2][Ring2][#C][C@@H1][Branch2][Ring1][Branch2][C][C][C@][Ring1][Branch1][Branch1][S][C][Branch1][=Branch2][C][Branch1][C][F][Branch1][C][F][F][Branch1][C][F][F][O][C@H1][C][Ring1][P][=C][C][C][C][=Branch1][C][=O][C][=C][Ring1][#Branch1][C][C][Ring1][O][C]"}]