Using Cc1cc(C)cc(CBr)c1, CC(C)(C)OC(=O)NC(CO)C(c1ccccc1)c1ccccc1 to produce Cc1cc(C)cc(COCC(NC(=O)OC(C)(C)C)C(c2ccccc2)c2ccccc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.