Using Nc1ccc(OCc2ccccc2)cc1, O=C(O)c1ccc2ncccc2c1 to produce O=C(Nc1ccc(OCc2ccccc2)cc1)c1ccc2ncccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.