[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is an organic cation which is an intermediate in the biosynthetic pathway leading to the synthesis of the monoterpenoid indole alkaloids, catharanthine and tabersonine. It is a methyl ester, a monoterpenoid indole alkaloid, an organic heterotetracyclic compound, an acetate ester and an organic cation."}, {"from": "gpt", "value": "[C][C][C][C][=N+1][C][C][C@@H1][Ring1][=Branch1][C@][Branch2][Ring1][Ring2][C][=C][Branch1][Branch1][C][C][Ring1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][N][Ring1][O][Branch1][Branch2][C][O][C][=Branch1][C][=O][C][C][=Branch1][C][=O][O][C]"}]