Using O=C1CC[C@@H](C(=O)Oc2cc(Cl)c(Cl)cc2Cl)N1, CC(C)(C)OC(=O)CCCN to produce CC(C)(C)OC(=O)C(CCN)C(=O)[C@@H]1CCC(=O)N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.