Using O=C(O)c1ccc2ncccc2c1, NC1CCN(CCc2c[nH]c3ccccc23)CC1 to produce O=C(NC1CCN(CCc2c[nH]c3ccccc23)CC1)c1ccc2ncccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.