1 9D6 N-[(4-{[cyclohexyl(ethyl)amino]methyl}phenyl)methyl]-4-oxo-3,4-dihydrothieno[2,3-D]pyrimidine-5-carboxamide 1.000 2 9D3 N-({4-[(diethylamino)methyl]phenyl}methyl)-4-oxo-3,4-dihydrothieno[2,3-D]pyrimidine-5-carboxamide 0.750