[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is only found in individuals that have used or taken this drug. It is an alkylating agent of value against both hematologic malignancies and solid tumors. Lomustine is a highly lipophilic nitrosourea compound which undergoes hydrolysis in vivo to form reactive metabolites. These metabolites cause alkylation and cross-linking of DNA (at the O6 position of guanine-containing bases) and RNA, thus inducing cytotoxicity. Other biologic effects include inhibition of DNA synthesis and some cell cycle phase specificity. Nitrosureas generally lack cross-resistance with other alkylating agents. As lomustine is a nitrosurea, it may also inhibit several key processes such as carbamoylation and modification of cellular proteins."}, {"from": "gpt", "value": "[C][C][C][C][Branch1][Branch1][C][C][Ring1][=Branch1][N][C][=Branch1][C][=O][N][Branch1][Ring2][C][C][Cl][N][=O]"}]