Using CC(C)[C@H](N)C(=O)C(F)(F)C(F)(F)F, CC(C)[C@H](NC(=O)OC(C)(C)C)C(=O)N1CCC[C@H]1C(=O)O to produce CC(C)[C@H](NC(=O)OC(C)(C)C)C(=O)N1CCC[C@H]1C(=O)N[C@H](C(=O)C(F)(F)C(F)(F)F)C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.