[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a chemotherapeutic agent chemically related to the nitrogen mustards and a synthetic analog of cyclophosphamide. It is active as an alkylating agent and an immunosuppressive agent."}, {"from": "gpt", "value": "[C][C][N][Branch1][#C][P][=Branch1][C][=O][Branch1][Branch1][O][C][Ring1][#Branch1][N][C][C][Cl][C][C][Cl]"}]