Using COc1ccc(-c2cc(-c3cnc4nc(C(F)(F)F)ccn34)ccc2F)cn1 to produce Oc1ccc(-c2cc(-c3cnc4nc(C(F)(F)F)ccn34)ccc2F)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.