Using CCc1ccc2c(c1)C(NC[C@@H](O)[C@H](Cc1cc(F)cc(F)c1)NC(C)=O)CCN2C to produce CCc1ccc2c(c1)[C@@H](NC[C@@H](O)[C@H](Cc1cc(F)cc(F)c1)NC(C)=O)CCN2C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.