Using F[C@H]1CCNC1, CC(C)(C)OC(=O)N1CC(=O)C[C@H]1C(=O)O to produce CC(C)(C)OC(=O)N1CC(=O)C[C@H]1C(=O)N1CC[C@H](F)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.