Using CS(=O)(=O)Cl, OCCC(c1ccccc1)c1cc(Br)ccc1OCc1ccccc1 to produce CS(=O)(=O)OCCC(c1ccccc1)c1cc(Br)ccc1OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.