[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][C][C][Branch1][Branch1][C][C][Ring1][=Branch1][N][C][=Branch1][C][=O][N][Branch1][Ring2][C][C][Cl][N][=O]"}, {"from": "gpt", "value": "The molecule is an Alkylating Drug. The mechanism of action of lomustine is as an Alkylating Activity."}]