Using CCOC(=O)[C@@](C)(CCBr)S(C)(=O)=O, [N-]=[N+]=[N-] to produce CCOC(=O)[C@@](C)(CCN=[N+]=[N-])S(C)(=O)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.