Using COc1ccc2nc(N)sc2c1, O=C(O)Cc1ccc(-c2ccncc2)cc1 to produce COc1ccc2nc(NC(=O)Cc3ccc(-c4ccncc4)cc3)sc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.