Using CS(=O)(=O)Cl, Oc1c(Br)ccc2cc(OCc3ccccc3)ccc12 to produce CS(=O)(=O)Oc1c(Br)ccc2cc(OCc3ccccc3)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.