8-CYCLOPENTYL-5-METHYL-2,6-BIS((5-(1-PIPERAZINYL)-2-PYRIDINYL)AMINO)PYRIDO(2,3-D)PYRIMIDIN-7(8H)-ONE
8-cyclopentyl-5-methyl-2,6-bis((5-(1-piperazinyl)-2-pyridinyl)amino)pyrido(2,3-d)pyrimidin-7(8h)-one