Using COC(=O)C(Cc1ccc([N+](=O)[O-])c(OCc2ccccc2)c1)NC(=O)c1ccccc1N to produce Nc1ccccc1C(=O)NC(Cc1ccc([N+](=O)[O-])c(OCc2ccccc2)c1)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.