Using CC(C)(C)OC(=O)N[C@@H](CC1CCCCC1)[C@@H](O)CC(c1ccccc1)c1ccccc1 to produce CC(C)(C)OC(=O)N[C@@H](CC1CCCCC1)[C@@H](O)CC(C1CCCCC1)C1CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.