Using CC(C)(C)CN1C(=O)C(CC(=O)NCc2ccccc2F)N(C(=O)c2ccncc2)Cc2ccccc21 to produce CC(=O)N1Cc2ccccc2N(CC(C)(C)C)C(=O)C1CC(=O)NCc1ccccc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.