Using CCOC(=O)[C@@H]1CC[C@@]2(C)[C@@H](C1)C[C@H](C(=O)OCC)[C@@H]1[C@@H]2C[C@H](O)[C@]2(C)[C@@H]([C@H](C)CCC(=O)OC)CC[C@@H]12, CC(C)NC1CCCCC1 to produce CCOC(=O)[C@@H]1CC[C@@]2(C)[C@@H](C1)C[C@H](C(=O)OCC)[C@@H]1[C@@H]2C[C@H](O)[C@]2(C)[C@@H]([C@H](C)CC(C)C(=O)OC)CC[C@@H]12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.