Using CCOC(=O)c1cc2cc(N)ccc2[nH]1, CC(C)(C)C[C@@H]1N[C@@H](C(=O)O)[C@H](c2cccc(Cl)c2F)[C@@]1(C#N)c1ccc(Cl)cc1F to produce CCOC(=O)c1cc2cc(NC(=O)[C@@H]3N[C@@H](CC(C)(C)C)[C@](C#N)(c4ccc(Cl)cc4F)[C@H]3c3cccc(Cl)c3F)ccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.