Using O=C(O)C1CCN(c2ccc([N+](=O)[O-])cc2)CC1, CNOC to produce CON(C)C(=O)C1CCN(c2ccc([N+](=O)[O-])cc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.