Using OCCC1(COCc2cc(C(F)(F)F)cc(C(F)(F)F)c2)OCc2ccccc21, CC(C)(O)C#N to produce N#CCCC1(COCc2cc(C(F)(F)F)cc(C(F)(F)F)c2)OCc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.