Using O=C(O)CCNc1nc(Cl)cc2nccnc12, CN(C)C(On1nnc2cccnc21)=[N+](C)C to produce NC(=O)CCNc1nc(Cl)cc2nccnc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.