Using O=C(O)c1cc(N2CCN(Cc3ccccc3)CC2)ccc1[N+](=O)[O-] to produce Nc1ccc(N2CCN(Cc3ccccc3)CC2)cc1C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.