Using CC(C)CC[C@H](O)[C@@H](N)CC1CCCCC1, CC(C)(C)OC(=O)N[C@@H](Cc1c[nH]cn1)C(=O)O to produce CC(C)CC[C@H](O)[C@H](CC1CCCCC1)NC(=O)[C@H](Cc1c[nH]cn1)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.