Using CC(C)c1ccc(C(=O)CBr)cc1, Cc1cc(O)cc(C)c1C to produce Cc1cc(OCC(=O)c2ccc(C(C)C)cc2)cc(C)c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.