Using Br, Nc1c(S(=O)(=O)O)cc(S(=O)(=O)O)cc1S(=O)(=O)O to produce O=S(=O)(O)c1cc(S(=O)(=O)O)c(Br)c(S(=O)(=O)O)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.