Using O=[N+]([O-])c1nc([N+](=O)[O-])c([N+](=O)[O-])[nH]1, COS(=O)(=O)OC to produce Cn1c([N+](=O)[O-])nc([N+](=O)[O-])c1[N+](=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.