(3aS,4S,6R,6aR)-tert-butyl4-(4-azido-5H-pyrrolo[3,2-d]pyrimidin-7-yl)-6-((((S)-2-((tert-butoxycarbonyl)amino)-4-methylpentanoyl)oxy)methyl)-2,2-dimethyldihydro-3aH-[1,3]dioxolo[4,5-c]pyrrole-5(4H)-carboxylate 在
钯 silica gel 作用下,
以
甲醇 为溶剂,
反应 2.0h,
以to furnish (3aS,4S,6R,6aR)-tert-butyl 4-(4-amino-5H-pyrrolo[3,2-d]pyrimidin-7-yl)-6-((((S)-2-((tert-butoxycarbonyl)amino)-4-methylpentanoyl)oxy)methyl)-2,2-dimethyldihydro-3aH-[1,3]dioxolo[4,5-c]pyrrole-5(4H)-carboxylate (32b) (300 mg, 53.5% yield) as a white solid的产率得到(3aS,4S,6R,6aR)-tert-butyl 4-(4-amino-5H-pyrrolo[3,2-d]pyrimidin-7-yl)-6-((((S)-2-((tert-butoxycarbonyl)amino)-4-methylpentanoyl)oxy)methyl)-2,2-dimethyldihydro-3aH-[1,3]dioxolo[4,5-c]pyrrole-5(4H)-carboxylate