Using CC(C)(C)OC(=O)N[C@@H](c1ccccc1)c1cccc(O)c1, O=Cc1ccc(OCCBr)cc1 to produce CC(C)(C)OC(=O)N[C@@H](c1ccccc1)c1cccc(OCCOc2ccc(C=O)cc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.