Using [N-]=[N+]=[N-], Clc1ccc(-c2nsnc2Cl)c(CBr)c1 to produce [N-]=[N+]=NCc1cc(Cl)ccc1-c1nsnc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.