Using BrCc1ccccc1, CC1(C)CCC(C)(C)c2cc(CC(=O)O)ccc21 to produce CC1(C)CCC(C)(C)c2cc(CC(=O)OCc3ccccc3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.