2-(3-((tert-butoxycarbonyl)(methyl)amino)pyrrolidin-1-yl)-4-ethoxypyrimidine-5-carboxylic acid 、
2-methyl-2H-pyrazolo[3,4-b]pyridin-5-amine 在
N,N-二异丙基乙胺 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以73.53%的产率得到tert-butyl (1-(4-ethoxy-5-((2-methyl-2H-pyrazolo[3,4-b]pyridin-5-yl)carbamoyl)pyrimidin-2-yl)pyrrolidin-3-yl)(methyl)carbamate