[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is an organochlorine compound that is pyridine substituted at position 2 by a chloromethyl group. It is a member of pyridines and an organochlorine compound. It is a conjugate base of a 2-(chloromethyl)pyridinium."}, {"from": "gpt", "value": "[C][=C][C][=N][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][Cl]"}]