Using NS(=O)(=O)c1ccc(Br)s1, O=C(O)Cc1ccc(S)cc1 to produce NS(=O)(=O)c1ccc(Sc2ccc(CC(=O)O)cc2)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.