Using CC(C)C(NC(=O)[C@@H]1CCCN1C(=O)[C@H](C)NC(=O)[C@H](C)NC(=O)OC(C)(C)C)C(=O)C(F)(F)F to produce CC(C)C(NC(=O)[C@@H]1CCCN1C(=O)[C@H](C)NC(=O)[C@H](C)N)C(=O)C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.