[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a member of pyridines, a member of piperazines and an isopropyl ester."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][O][C][=Branch1][C][=O][C][=C][Branch1][#Branch1][N][=C][C][=C][Ring1][=Branch1][N][C][C][N][Branch1][Branch1][C][C][Ring1][=Branch1][C][=C][C][=Branch1][=Branch1][=C][C][=C][Ring1][=Branch1][Cl]"}]