Using CCOC(=O)C1CCN(c2nc3ccc([N+](=O)[O-])cc3s2)CC1 to produce O=C(O)C1CCN(c2nc3ccc([N+](=O)[O-])cc3s2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.