[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is an alkaloid, an organic heteropentacyclic compound and a methyl ester. It has a role as a metabolite."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][C@H1][C][N][C][C][C@@][C@@H1][Ring1][Branch1][C][C@@H1][Ring1][=Branch2][C][=Branch1][#C][=C][Ring1][=Branch1][N][C][=C][C][=C][C][=C][Ring1][=N][Ring1][=Branch1][C][=Branch1][C][=O][O][C]"}]