1 IXH 8-(2,3-dihydro-1h-inden-5-yl)-2-({4-[(3r,5s)-3,5-dimethylpiperazin-1-yl]phenyl}amino)-5-oxo-5,8-dihydropyrido[2,3-D]pyrimidine-6-carboxamide 1.000 2 X4H Narazaciclib 0.707