作者:Stefano Manfredini、Pier G. Baraldi、Rita Bazzanini、Mario Guarneri、Daniele Simoni
DOI:10.1016/s0040-4039(00)77285-6
日期:1994.8
Tetrahydropyranyl (THP) derivatives of alcohols are converted in one-pot and in stereoselective manner into the corresponding 1-O-alkyl-2,3,5-tri-O-benzoyl-β-D-ribofuranosides on treatment with 1-O-acetyl-2,3,5-tri-O-benzoyl-β-D-ribofuranose and trimethylsilyl triflate (TMSOTf). The same protocol was also applyed on 1-O-acetyl-2,3,4,6-tetra-O-benzyl-glucopyranoside (α/β 9:1) to give, by reaction with
四氢吡喃基(THP)醇的衍生物被转换在单罐和立体选择性的方式将相应的1- ø -烷基-2,3,5-三ö治疗苯甲酰基β-d-ribofuranosides与1- ö -乙酰-2,3,5-三-O-苯甲酰基-β-D-呋喃呋喃糖和三氟甲磺酸三甲基甲硅烷基酯(TMSOTf)。对1 - O-乙酰基-2,3,4,6-四-O-苄基-吡喃葡萄糖苷(α/β9:1)也应用相同的方案,通过与1 - O-甲基-2反应,得到3,4-三-O-苄基-6-THP-α-D-吡喃葡萄糖苷,相应的二糖胺(α/β3:1)。该反应收率高,并且在非常温和的条件下(-30°C)使用容易获得的起始原料快速进行。