Using NCc1nccnc1Cl, COC(=O)C1CCC(C(=O)O)CC1 to produce COC(=O)[C@H]1CC[C@H](C(=O)NCc2nccnc2Cl)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.