Using COc1ccc(-c2[nH]c(-c3ccc([N+](=O)[O-])cc3)nc2C(=O)Nc2nccs2)cc1 to produce O=C(Nc1nccs1)c1nc(-c2ccc([N+](=O)[O-])cc2)[nH]c1-c1ccc(O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.