Using CC(C)C[C@@H](C(=O)O)N(C)C(=O)OC(C)(C)C, O=C(N[C@H]1CC[C@@H]2CNC[C@@H]21)C(c1ccc(F)cc1)c1ccc(F)cc1 to produce CC(C)C[C@@H](C(=O)N1C[C@H]2CC[C@H](NC(=O)C(c3ccc(F)cc3)c3ccc(F)cc3)[C@H]2C1)N(C)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.