Using CC(C)(C)OC(=O)N[C@H](Cc1ccc(Cl)cc1)C(=O)O, C[C@@H]1CCc2ncnc(N3CCNC[C@@H]3C)c21 to produce C[C@@H]1CCc2ncnc(N3CCN(C(=O)[C@@H](Cc4ccc(Cl)cc4)NC(=O)OC(C)(C)C)C[C@@H]3C)c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.