Using O=C(O)Cc1ccccc1, O=C1CCC(c2ccccc2)(c2ccccc2)C2CNCC12 to produce O=C1CCC(c2ccccc2)(c2ccccc2)C2CN(C(=O)Cc3ccccc3)CC12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.