Using COC(CC(=O)O)OC, COC(=O)[C@H](CCOCc1ccccc1)NCC(C)Nc1ccc(Cl)c(Cl)c1 to produce COC(=O)[C@H](CCOCc1ccccc1)N(CC(C)Nc1ccc(Cl)c(Cl)c1)C(=O)CC(OC)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.