Using CSC(=N[N+](=O)[O-])NCc1cnc(Cl)s1, NCc1cnc(Cl)s1 to produce O=[N+]([O-])N=C(NCc1cnc(Cl)s1)NCc1cnc(Cl)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.