Using Cc1cc(-c2ccc(C(C)(C)C)cc2)cc(C)c1NC(=O)C(F)(F)F to produce Cc1cc(-c2ccc(C(C)(C)C)cc2)cc(C)c1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.