Using O=CC(F)(F)F, O=[N+]([O-])c1ccc2c(c1)OCCN2 to produce O=[N+]([O-])c1ccc2c(c1)OCCN2CC(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.