(2S)-2-amino-4-[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methyl-[2-(methylamino)ethyl]amino]butanoic acid 、 tert-butyl (4-(4-chlorophenoxy)-3-fluorophenethyl)(3-((((3aR,4R,6R,6aS)-2,2-dimethyl-6-(4-(methylamino)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)tetrahydro-4H-cyclopenta[d][1,3]dioxol-4-yl)methyl)amino)propyl)carbamate 在
sodium cyanoborohydride 作用下,
以
乙醇 为溶剂,
反应 13.0h,
以50.8%的产率得到ethyl (S)-4-((3-((tert-butoxycarbonyl)(4-(4-chlorophenoxy)-3-fluorophenethyl)amino)propyl)(((3aR,4R,6R,6aS)-2,2-dimethyl-6-(4-(methylamino)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)tetrahydro-4H-cyclopenta[d][1,3]dioxol-4-yl)methyl)amino)-2-((tert- butoxycarbonyl)amino)butanoate