diethyl (E)-2-((3aR,4R,6R,6aR)-6-(4-benzamido-1H-pyrazolo[3,4-d]pyrimidin-1-yl)-2,2-dimethyl-tetrahydrofuro[3,4-d][1,3]dioxol-4-yl)vinylphosphonate 、
三氟乙酸 在
methanol-dichloromethane 作用下,
以
水 为溶剂,
反应 2.0h,
以to afford compound 25.1 (65 mg, 43% yield) as a white solid的产率得到diethyl (E)-2-((2R,3S,4R,5R)-5-(4-benzamido-1H-pyrazolo[3,4-d]pyrimidin-1-yl)-3,4-dihydroxy-tetrahydrofuran-2-yl)vinylphosphonate