Using CCOC(=O)[C@H](C)NC(=O)[C@@H](N)C(C)(C)C, CN1CCC(C(=O)O)CC1 to produce CCOC(=O)[C@H](C)NC(=O)[C@@H](NC(=O)C1CCN(C)CC1)C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.