四氢吡喃-4-甲酸 、
2-((2-ethyl-6-methyl-5-(piperazin-1-yl)-2H-pyrazolo[3,4-b]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazole-5-carbonitrile 在
三乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
生成 2-((2-ethyl-6-methyl-5-(6-(tetrahydro-2H-pyran-4-carbonyl)-2,6-diazaspiro[3.3]heptan-2-yl)-2H-pyrazolo[3,4-b]pyridin-3-yl)(methyl)amino)-4-(4-fluorophenyl)thiazole-5-carbonitrile