Using O=C(OC(=O)C(F)(F)F)C(F)(F)F, CCOC(=O)c1ccc(Cl)c[n+]1[O-] to produce CCOC(=O)c1ccc(Cl)c(O)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.