[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a steroid. It derives from a hydride of an estrane."}, {"from": "gpt", "value": "[C][C@][C][C][C@H1][C@H1][Branch1][S][C@@H1][Ring1][=Branch1][C][C@@H1][Branch1][Branch2][C@][Ring1][=Branch2][Branch1][C][C][O][O][C][C][C@@H1][C@@][Ring1][=N][Branch1][=C][C][C][=C][Branch1][Ring2][C][Ring1][=Branch1][N][N][=C][Ring1][=Branch1][C]"}]