Using O=S(=O)(OCC(F)(F)F)C(F)(F)F, COc1ccc(C#N)c(O)c1OC to produce COc1ccc(C#N)c(OCC(F)(F)F)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.