Using CCOC(=O)Cn1ccc(NC(=O)[C@H](CC(C)C)N2CC(Oc3cccc(C4CC4)c3F)=CC2=O)n1 to produce CC(C)C[C@@H](C(=O)Nc1ccn(CC(=O)O)n1)N1CC(Oc2cccc(C3CC3)c2F)=CC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.