Using CC(C)[C@H](NC(=O)OCc1ccccc1)C(=O)NC(Cc1ccccc1)C(O)C(F)Cc1ccccc1 to produce CC(C)[C@H](NC(=O)OCc1ccccc1)C(=O)NC(Cc1ccccc1)C(=O)C(F)Cc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.