Using CN1CC(C(Oc2ccccc2[N+](=O)[O-])c2ccccc2)OCC1=O, CO to produce CC1NCCOC1C(Oc1ccccc1[N+](=O)[O-])c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.