Using O=C(COc1ccc(CBr)cc1)c1ccccc1, Cc1nc(O)ccc1C=O to produce O=Cc1ccc(OCc2ccc(OCC(=O)c3ccccc3)cc2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.