Using O=C(O)c1ccccc1, Cc1ccccc1C1CCN(CC2CNCC2c2ccccc2)CC1 to produce Cc1ccccc1C1CCN(CC2CN(C(=O)c3ccccc3)CC2c2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.