Using [N-]=[N+]=[N-], Cc1ccc(S(=O)(=O)OCCc2cc3cc(Br)cc(Cl)c3o2)cc1 to produce [N-]=[N+]=NCCc1cc2cc(Br)cc(Cl)c2o1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.