ethyl 1-[5-(methylsulfonyloxymethyl)pyrimidin-2-yl]piperidine-4-carboxylate 、 6-((3S,4S)-4-methylpyrrolidin-3-yl)-1-(tetrahydro-2H-pyran-4-yl)-1,5-dihydro-4H-pyrazolo[3,4-d]pyrimidin-4-one 在
potassium carbonate 作用下,
以
乙腈 为溶剂,
反应 18.0h,
以41%的产率得到ethyl rac-trans-1-[5-[[3-methyl-4-(4-oxo-1-tetrahydropyran-4-yl-5H-pyrazolo[3,4-d]pyrimidin-6-yl)pyrrolidin-1-yl]methyl]pyrimidin-2-yl]piperidine-4-carboxylate