Using O=Cc1ccc(Cl)cc1, COC(=O)CCNC1CCN(C(=O)OC(C)(C)C)C1 to produce COC(=O)CCN(Cc1ccc(Cl)cc1)C1CCN(C(=O)OC(C)(C)C)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.