Using O=C([O-])[O-], O=C(N1CCc2cc(O)c([N+](=O)[O-])cc2CC1)C(F)(F)F to produce COc1cc2c(cc1[N+](=O)[O-])CCN(C(=O)C(F)(F)F)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.