Using O=Cc1ccc(O)cc1, O=C(O)c1ccc(N=Nc2ccc([N+](=O)[O-])cc2)cc1 to produce O=Cc1ccc(OC(=O)c2ccc(N=Nc3ccc([N+](=O)[O-])cc3)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.