Using CCN1CCN(c2ncccc2C(=O)NCCCCCCCCCCCO)CC1, O=[N+]([O-])O to produce CCN1CCN(c2ncccc2C(=O)NCCCCCCCCCCCO[N+](=O)[O-])CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.