[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a steroid ester."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C@H1][C][C][C@][Branch1][P][C@H1][Branch1][Branch2][C@@H1][Ring1][=Branch1][C][C][Ring1][N][C][C][C@@H1][Ring1][Branch2][O][C]"}]