Using CCO, O=C1CC(=C[N+](=O)[O-])Nc2ccc(Cl)cc2N1c1ccccc1 to produce CC1=NCC2CC(=O)N(c3ccccc3)c3cc(Cl)ccc3N12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.