N'-[4-cyano-3-(2-hydroxyethoxy)-1H-pyrazol-5-yl]-N,N-dimethylimidoformamide 、
(4-amino-2-methyl)phenylbenzylether 以to give the title compound as a white solid (2.25 g, 64%)的产率得到2-[(4-{[4-(benzyloxy)-3-methylphenyl]amino}-1H-pyrazolo[3,4-d]pyrimidin-3-yl)oxy]ethanol