Using O=[N+]([O-])c1ccccc1F, NCCC(=O)c1ccccc1N to produce NCC(C(=O)c1ccccc1N)c1ccccc1[N+](=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.