Using O=C(CN1CCN(CC(=O)c2ccc([N+](=O)[O-])cc2)CC1)c1ccc([N+](=O)[O-])cc1 to produce O=[N+]([O-])c1ccc(C(O)CN2CCN(CC(O)c3ccc([N+](=O)[O-])cc3)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.