Using O=C(c1ccccc1)c1ccc2nc(C(=O)Nc3ccccc3)cn2c1 to produce O=C(Nc1ccccc1)c1cn2cc(C(O)c3ccccc3)ccc2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.