Using O=C(O)Cc1c[nH]c2ccccc12, COc1ccccc1C1(O)CCCC2CNCC21 to produce COc1ccccc1C1(O)CCCC2CN(C(=O)Cc3c[nH]c4ccccc34)CC21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.