6-methyl-5-((1-methyl-6-(pyrimidin-5-ylamino)-1H-pyrazolo[3,4-d]pyrimidin-3-yl)amino)nicotinic acid 、
(R)-2-(3-methylpyrrolidin-1-yl)ethanamine 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以23.9 mg的产率得到(R)-6-methyl-5-((1-methyl-6-(pyrimidin-5-ylamino)-1H-pyrazolo[3,4-d]pyrimidin-3-yl)amino)-N-(2-(3-methylpyrrolidin-1-yl)ethyl)nicotinamide