Using O=C(Cl)c1ccc(Cl)cc1, CCOC(=O)CNc1nc(Cl)ccc1[N+](=O)[O-] to produce CCOC(=O)CNc1nc(Cl)ccc1NC(=O)c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.