6-methyl-5-((1-methyl-6-((1-methyl-1H-pyrazol-4-yl)amino)-1H-pyrazolo[3,4-d]pyrimidin-3-yl)amino)nicotinic acid 、
(R)-2-(2-ethylmorpholino)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40 mg的产率得到(R)-N-(2-(2-ethylmorpholino)ethyl)-6-methyl-5-((1-methyl-6-((1-methyl-1H-pyrazol-4-yl)amino)-1H-pyrazolo[3,4-d]pyrimidin-3-yl)amino)nicotinamide