Using COC(=O)[C@H](Cc1ccc(O)cc1)NC(=O)OC(C)(C)C, Clc1cncc(Cl)c1CCBr to produce COC(=O)[C@H](Cc1ccc(OCc2c(Cl)cncc2Cl)cc1)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.