3-四氢呋喃甲酸 、 (S)-9-ethyl-8-(2-methylpyrimidin-5-yl)-6-(pyrrolidin-3-yloxy)-9H-purine dihydrochloride 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 4.0h,
以37%的产率得到(3(S)-((9-ethyl-8-(2-methylpyrimidin-5-yl)-9H-purin-6-yl)oxy)pyrrolidin-1-yl)(tetrahydrofuran-3(R/S)-yl)methanone