Using COC(=O)C[C@@H](O)[C@@H](Cc1ccc(Cl)c(Cl)c1)N(C)C(=O)OC(C)(C)C to produce CN(C(=O)OC(C)(C)C)[C@H](Cc1ccc(Cl)c(Cl)c1)[C@H](O)CC(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.