methanesulfonic acid 6-bromo-3-methyl-1-(tetrahydropyran-2-yl)-1H-pyrazolo[3,4-b]pyridin-4-ylmethyl ester 、
2-ethyl-2,5,5-trimethylpiperazine-1-carboxylic acid tert-butyl ester 在
N,N-二异丙基乙胺 、 potassium iodide 作用下,
以
四氢呋喃 为溶剂,
反应 0.83h,
以75 mg的产率得到4-[6-bromo-3-methyl-1-(tetrahydropyran-2-yl)-1H-pyrazolo[3,4-b]pyridin-4-ylmethyl]-2-ethyl-2,5,5-trimethylpiperazine-1-carboxylic acid tert-butyl ester