Using CCOC(=O)c1onc(-c2ccc(S(C)(=O)=O)cc2)c1[N+](=O)[O-] to produce CCOC(=O)c1onc(-c2ccc(S(C)(=O)=O)cc2)c1N, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.