3-(6-fluoropyridin-2-yl)-5-(1-methyl-1H-pyrazol-4-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazolo[3,4-c]pyridine 、
4-羟基哌啶 以to give 294 as a white solid (56.1% over two steps)的产率得到1-(6-(5-(1-methyl-1H-pyrazole-4-yl)-1H-pyrazolo[3,4-c]pyridine-3-yl)pyridin-2-yl)piperidin-4-ol