Using COC(=O)[C@@H]1CCC(=O)N1C(=O)OC(C)(C)C, Brc1ccc(OCc2ccccc2)cc1 to produce COC(=O)[C@H](CCC(=O)c1ccc(OCc2ccccc2)cc1)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.