Using CC(C)(C)OC(=O)N[C@@H](CC1CCCCC1)C(=O)O, CC1(C)C2CC[C@@]1(C)C(N)C2 to produce CC(C)(C)OC(=O)N[C@@H](CC1CCCCC1)C(=O)N[C@H]1C[C@H]2CC[C@]1(C)C2(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.