Using NS(=O)(=O)c1cc(C(=O)O)ccc1NS(=O)(=O)CCc1ccc(Br)cc1 to produce NS(=O)(=O)c1cc(CO)ccc1NS(=O)(=O)CCc1ccc(Br)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.