Using CCCN1C[C@H](O)[C@@H](NC(=O)[C@H](CC2CCCCC2)NC(=O)OC(C)(C)C)CC[C@H]1C to produce CCCN1C[C@H](O)[C@@H](NC(=O)[C@@H](N)CC2CCCCC2)CC[C@H]1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.