Using O=C(Nc1cccn(O)c1=O)OCc1ccccc1, BrCc1ccccc1 to produce O=C(Nc1cccn(OCc2ccccc2)c1=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.