N'-[4-cyano-3-(2-hydroxyethoxy)-1H-pyrazol-5-yl]-N,N-dimethylimidoformamide 、
3-ethyl-4-(pyridin-2-ylmethoxy)aniline 以to give the title compound as a white solid (625 mg, 55%)的产率得到2-[(4-{[3-ethyl-4-(pyridin-2-ylmethoxy)phenyl]amino}-1H-pyrazolo[3,4-d]pyrimidin-3-yl)oxy]ethanol