IUPAC:6-acetyl-8-cyclopentyl-5-methyl-2-({5-[(2,2,3,3,5,5,6,6-2H8)piperazin-1-yl]pyridin-2-yl}amino)-7H,8H-pyrido[2,3-d]pyrimidin-7-one
IUPAC:6-acetyl-8-cyclopentyl-5-methyl-2-({5-[(2,2,3,3,5,5,6,6-2H8)piperazin-1-yl]pyridin-2-yl}amino)-7H,8H-pyrido[2,3-d]pyrimidin-7-one