Using O=C1c2nc[nH]c2N(Cc2ccc(Cl)cc2)C2=NCCN12, CI to produce Cn1cnc2c1C(=O)N1CCN=C1N2Cc1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.