Using O=Cc1ccc(-c2cccc(C3CC(C(F)(F)C(F)(F)F)=NN3c3ccc(F)cc3F)c2)nc1 to produce OCc1ccc(-c2cccc(C3CC(C(F)(F)C(F)(F)F)=NN3c3ccc(F)cc3F)c2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.