Using CCOC(=O)CCC[C@H]1CN(C(=O)OC(C)(C)C)CCN1C(=O)OC(C)(C)C to produce CC(C)(C)OC(=O)N1CCN(C(=O)OC(C)(C)C)[C@@H](CCCC(=O)O)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.