Using CCOC(=O)CCN, CC(C)C[C@H](Nc1ccc(C(=O)O)cn1)c1cnc(-c2ccc(C(F)(F)F)cc2)nc1 to produce CCOC(=O)CCNC(=O)c1ccc(N[C@@H](CC(C)C)c2cnc(-c3ccc(C(F)(F)F)cc3)nc2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.