6-ACETYL-8-CYCLOPENTYL-2-((5-(4-ETHYL-1-PIPERAZINYL)-2-PYRIDINYL)AMINO)-5-METHYLPYRIDO(2,3-D)PYRIMIDIN-7(8H)-ONE
6-acetyl-8-cyclopentyl-2-((5-(4-ethyl-1-piperazinyl)-2-pyridinyl)amino)-5-methylpyrido(2,3-d)pyrimidin-7(8h)-one