Using O=C(O)[C@](O)(c1ccccc1)C1CCCC1, CC(C)(C)OC(=O)N1CC[C@@H](O)C1 to produce CC(C)(C)OC(=O)N1CCC(OC(=O)[C@](O)(c2ccccc2)C2CCCC2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.