Using NCCO[N+](=O)[O-], CCCOC(=NC#N)c1ccc(N(CC)CC)nc1 to produce CCN(CC)c1ccc(C(=NCCO[N+](=O)[O-])NC#N)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.