Using O=c1[nH]c2ccc(-n3ccnc3)cc2n(O)c1=O, BrCc1ccccc1 to produce O=c1[nH]c2ccc(-n3ccnc3)cc2n(OCc2ccccc2)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.