Ethyl 2-((5-(4-(tert-butoxycarbonyl)piperazin-1-yl)pyridin-2-yl)amino)-8-cyclopentyl-5-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylate
(1H-Pyrrolo[3,2-b]pyridin-5-yl)methanol
tert-Butyl 6-bromo-2-oxo-1H-imidazo[4,5-b]pyridine-3(2H)-carboxylate
2-Methyl-6-(trimethylsilyl)pyridine