Using OCC(F)(F)C(F)(F)C(F)(F)F, O=[N+]([O-])c1cccc(CCl)c1 to produce O=[N+]([O-])c1cccc(COCC(F)(F)C(F)(F)C(F)(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.