Using Cc1cc(OCCCS(C)(=O)=O)cc(C)c1-c1cccc(CO)c1, Br to produce Cc1cc(OCCCS(C)(=O)=O)cc(C)c1-c1cccc(CBr)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.