Using COc1cc(CCC(=O)O)cc(OC)c1OC, Nc1cccc([N+](=O)[O-])c1 to produce COc1cc(CCC(=O)Nc2cccc([N+](=O)[O-])c2)cc(OC)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.