[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a carbotricyclic compound, a cyclic ketone and a carboxylic ester."}, {"from": "gpt", "value": "[C][C@H1][C@@H1][Branch2][Ring2][=N][C@][Branch2][Ring2][Ring2][C][C@H1][Branch2][Ring1][Branch2][C@][Branch2][Ring1][Ring1][C@H1][C@@][Ring1][Branch2][Branch1][#Branch1][C][C][C][Ring1][=Branch1][C][C][C][C][Ring1][=Branch2][=O][C][O][C][=Branch1][C][=O][C][O][Branch1][C][C][C][=C][O]"}]