Using CCOC(=O)c1c(O)c([N+](=O)[O-])cn1C, COS(=O)(=O)OC to produce CCOC(=O)c1c(OC)c([N+](=O)[O-])cn1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.