Using Cn1nc(N)c2c(-c3ccc(NC(=O)Nc4cccc(C(F)(F)F)c4)cc3)ccnc21 to produce Cn1ncc2c(-c3ccc(NC(=O)Nc4cccc(C(F)(F)F)c4)cc3)ccnc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.