Using NNc1ccc(C(=O)O)cc1, O=C(Cc1ccccc1)c1ccccc1 to produce O=C(O)c1ccc2[nH]c(-c3ccccc3)c(-c3ccccc3)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.