Using COc1ccc(Br)cc1S(=O)(=O)Nc1cc(Cl)cc(Cl)c1 to produce O=S(=O)(Nc1cc(Cl)cc(Cl)c1)c1cc(Br)ccc1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.