Using O=S(=O)(c1ccccc1)c1ccc(-c2cc(Cl)ccc2O)cc1, CC(C)(C)OC(=O)CBr to produce CC(C)(C)OC(=O)COc1ccc(Cl)cc1-c1ccc(S(=O)(=O)c2ccccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.