Using C[C@@H](C1CCC(NC(=O)OCc2ccccc2)CC1)[C@H](NC(=O)OC(C)(C)C)C(=O)N1CC[C@H](F)C1 to produce C[C@@H](C1CCC(N)CC1)[C@H](NC(=O)OC(C)(C)C)C(=O)N1CC[C@H](F)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.