TERT-BUTYL 4-(6-((6-(1-BUTOXYETHENYL)-8-CYCLOPENTYL-5-METHYL-7-OXO-7,8-DIHYDRO-PYRIDO(2,3-D)PYRIMIDIN-2-YL)AMINO)-PYRIDIN-3-YL)-PIPERAZINE-1-CARBOXYLATE
tert-butyl 4-(6-((6-(1-butoxyethenyl)-8-cyclopentyl-5-methyl-7-oxo-7,8-dihydro-pyrido(2,3-d)pyrimidin-2-yl)amino)-pyridin-3-yl)-piperazine-1-carboxylate