1 WTC 6-benzyl-1-cyclopentyl-1,5-dihydro-4h-pyrazolo[3,4-D]pyrimidin-4-one 1.000 2 A1I45 5-oxidanyl-2-(phenylmethyl)-1,9-dihydropyrimido[4,5-B]indol-4-one 0.760