Using NCCNC(=S)Nc1c(Cl)cc([N+](=O)[O-])cc1Cl to produce O=[N+]([O-])c1cc(Cl)c(N=C2NCCN2)c(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.