作者:Luigi Lay、Francesco Nicotra、Angelo Paganini、Cristina Pangrazio、Luigi Panza
DOI:10.1016/0040-4039(93)88084-v
日期:1993.7
Reaction of the commercially available 2,3,5-tri-O-benzyl-D-arabinose with a primary amine (RNH2) affords the arabinofuranosylamine 2, which on treatment with a Grignard reagent stereoselectively gives the aminoalcohol 3. 3 is an useful precursor of azasugars: it is converted into the pyrrolidine 4 by treatment with Tf2O-Py, whereas by oxidation with PCC it affords the lactam 5 which can be reduced
市售的2,3,5-三-O-苄基-D-阿拉伯糖与伯胺(RNH 2)的反应得到阿拉伯呋喃糖胺2,在用格利雅试剂处理后立体选择性地得到氨基醇3。3是氮杂糖的有用前体:通过用Tf 2 O-Py处理可将其转化为吡咯烷4,而通过PCC氧化可提供可还原为相应胺6的内酰胺5。