(2S,3S,4R,5R)-tert-butyl 2-(4-azido-5H-pyrrolo[3,2-d]pyrimidin-7-yl)-3-(((S)-2-((tert-butoxycarbonyl)amino)-3-methylbutanoyl)oxy)-4-hydroxy-5-((trityloxy)methyl)pyrrolidine-1-carboxylate 在
钯 作用下,
以
乙醇 为溶剂,
反应 8.0h,
以to furnish a 3:2 mixture (analyzed by NMR) of (2S,3S,4R,5R)-tert-butyl 2-(4-amino-5H-pyrrolo[3,2-d]pyrimidin-7-yl)-3-(((S)-2-((tert-butoxycarbonyl)amino)-3-methylbutanoyl)oxy)-4-hydroxy-5-((trityloxy)methyl)pyrrolidine-1-carboxylate (39d) and (2S,3S,4R,5R)-tert-butyl 2-(4-amino-5H-pyrrolo[3,2-d]pyrimidin-7-yl)-4-(((S)-2-((tert-butoxycarbonyl)amino)-3-methylbutanoyl)oxy)-3-hydroxy-5-((trityloxy)methyl)pyrrolidine-1-carboxylate (39e) (945 mg, 1.171 mmol, 74.0% yield) as white solid的产率得到(2S,3S,4R,5R)-tert-butyl 2-(4-amino-5H-pyrrolo[3,2-d]pyrimidin-7-yl)-3-(((S)-2-((tert-butoxycarbonyl)amino)-3-methylbutanoyl)oxy)-4-hydroxy-5-((trityloxy)methyl)pyrrolidine-1-carboxylate