Using CN(COC(=O)C(F)(F)F)[N+](=O)[O-], O=[N+]([O-])C(F)(CO)[N+](=O)[O-] to produce CN(COCC(F)([N+](=O)[O-])[N+](=O)[O-])[N+](=O)[O-], please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.