methyl 5-O-benzyl-2,3-dideoxy-β-D-pent-2-enofuranoside | 80796-99-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: methyl 5-O-benzyl-2,3-dideoxy-β-D-pent-2-enofuranoside
• 英文别名: (2R,5S)-2-methoxy-5-(phenylmethoxymethyl)-2,5-dihydrofuran
• CAS: 80796-99-2
• 化学式: C₁₃H₁₆O₃
• 分子量: 220.268
• InChiKey: XFZWGWKNHZEVAN-QWHCGFSZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.13
• 重原子数：
  16.0
• 可旋转键数：
  5.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  27.69
• 氢给体数：
  0.0
• 氢受体数：
  3.0

反应信息

• 作为产物：
  描述：

  2,3-Anhydro-5-O-benzyl-β-D-ribofuranoside de methyle 在 sodium tetrahydroborate 、 甲基磺酰氯 作用下， 以 吡啶 、 乙醇 为溶剂， 反应 14.0h， 生成 methyl 5-O-benzyl-2,3-dideoxy-β-D-pent-2-enofuranoside
  参考文献：
  名称：

  Enantiopure 1,4,5-Trisubstituted 1,2,3-Triazoles from Carbohydrates: Applications of Organoselenium Chemistry

  摘要：

  A wide range of stable vinyl selenone-modified furanosides has been synthesized for the first time. These 2 pi-partners undergo 1,3-dipolar cycloaddition reactions with a wide range of organic azides to afford enantiopure trisubstituted triazoles. Furanosyl rings opened up during triazole synthesis to generate polyfunctionalized molecules, ready to undergo further transformations. This strategy is one of the most convenient methods for the synthesis of enantiopure 1,4,5-trisubstituted 1,2,3-triazoles where the chiral components are attached to C-4 or C-5 position of triazole ring. These triazoles are formed in a regioselective manner, and several pairs of regioisomeric triazoles have also been synthesized. The approach affords densely functionalized triazoles, which are amenable to further modifications because of the presence of aldehyde and hydroxyl groups. This powerful and practical route adds to the arsenals of chemists and biologists interested in the synthesis and applications of triazoles.

  DOI：

  10.1021/jo5009564

文献信息

• Synthesis of 2‘,3‘-Didehydro-2‘,3‘-dideoxynucleosides by Reaction of 5‘-Protected Nucleoside 2‘,3‘-Dimesylates with Telluride Dianion:  A General Route from <i>Cis</i> Vicinal Diols to Olefins
  作者：Derrick L. J. Clive、Philip L. Wickens、Paulo W. M. Sgarbi

  DOI：10.1021/jo9610570

  日期：1996.1.1

  treatment with telluride dianion in the form of the sodium or lithium salt. The method is well-suited to the preparation of unsaturated nucleosides that can be converted into compounds that are believed to be useful in the treatment of AIDS. The deoxygenation is general for vicinal dimesylates that have, or may adopt, a synperiplanar conformation. With straight chain compounds the reaction is stereospecific

  通过用钠或锂盐形式的碲化物二价阴离子处理，将5'-保护的核苷的2'，3'-二甲磺酸酯转化为相应的2'，3'-二氢-2'，3'-二脱氧化合物。该方法非常适合于不饱和核苷的制备，该不饱和核苷可以转化为据信可用于治疗艾滋病的化合物。脱氧通常用于具有或可以采用间平面构象的邻近二甲基酯。对于直链化合物，反应是立体特异性的。在某些情况下，可以用硒化物二价阴离子进行类似但较慢的脱氧。
• Reaction of cis-vicinal dimethanesulfonates with Te^2–: a method for converting cis-vicinal diols into olefins and its use in the preparation of 2′,3′-didehydro-2′,3′-dideoxynucleosides
  作者：Derrick L. J. Clive、Philip L. Wickens

  DOI：10.1039/c39930000923

  日期：——

  cis-Vicinal dimethanesulfonates, prepared from the corresponding diols, are converted into olefins by treatment with alkali metal tellurides or selenides (M2Te or M2Se); the reaction has been used to make derivatives of 2′,3′-didehydro-2′,3′-dideoxynucleosides.

  由相应二醇制备的顺式邻二甲磺酸酯，通过与碱金属碲化物或硒化物（M2Te或M2Se）处理，可转化为烯烃；该反应已被用于制备2′,3′-二脱氢-2′,3′-二脱氧核苷的衍生物。