Using Cn1cc([N+](=O)[O-])cc([N+](=O)[O-])c1=O, O=C1CCSCC1 to produce O=[N+]([O-])c1cnc2c(c1)CSCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.