methyl 2-deoxy-β-D-arabino-hexopyranoside | 52612-68-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃二恶英
• 英文名称: methyl 2-deoxy-β-D-arabino-hexopyranoside
• 英文别名: methyl 4,6-O-benzylidene-2-deoxy-β-D-glucopyranoside；methyl 4,6-O-benzylidene-2-deoxy-β-D-arabino-hexopyranoside；(4aR,6R,8R,8aS)-6-methoxy-2-phenyl-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-8-ol
• CAS: 52612-68-7
• 化学式: C₁₄H₁₈O₅
• 分子量: 266.294
• InChiKey: FHXCXDUEKHFWGP-LSGALXMHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  57.2
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  methyl 2-deoxy-β-D-arabino-hexopyranoside 在 吡啶 、 N-溴代丁二酰亚胺(NBS) 、 sodium azide 、 barium carbonate 作用下， 以 四氯化碳 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 6.5h， 生成 methyl 3-azido-4-O-benzoyl-6-bromo-2,3,6-trideoxy-β-D-ribo-hexopyranoside
  参考文献：
  名称：

  Synthesis of 6-Hydroxy-L-Daunosamine and L-Daunosamine Derivatives

  摘要：

  Methyl 3-trifluoroacetamido-2,3-dideoxy-alpha-L-lyxo-hexopyranoside (19) has been synthesized from D-glucose derivatives following two pathways. The first one involving 1,2:5,6-di-O-isopropylidene-alpha-D-glucopyranose as starting material is mainly based upon azidation at C-3, inversion of configuration at C-5 and then radical deoxygenation at C-2 (13 steps and 10% overall yield). This pathway also afforded methyl N-trifluoroacetyl-alpha-L-daunosamine 22. The second pathway, which started from tri-O-acetyl-D-glucal, relied essentially upon Michael addition of N3H on the corresponding hex-2-enose and glycosidation of the two pivaloyl compounds 33 and 34. After the beta-D-ribo isomer 34 was subsequently converted into its beta-methyl glycoside 28b, inversion of configuration at C-5 was carried out via the formation of the 6-bromo-sugar 36, followed by formation of the hex-5-enopyranoside 37. Hydroboration of 37 stereoselectively afforded 38, followed by catalytic hydrogenation and trifluoroacetylation to give 19.

  DOI：

  10.1080/07328309708006508
• 作为产物：
  描述：

  methyl 3,4,6-tri-O-acetyl-2-bromo-2-deoxy-α-D-mannopyranoside 在 Ni(Raney) 氢气 、 sodium methylate 、 对甲苯磺酸 作用下， 生成 methyl 2-deoxy-β-D-arabino-hexopyranoside
  参考文献：
  名称：

  合成二糖，天然蒽环类抗生素和抗肿瘤药

  摘要：

  DOI：

  10.1016/s0040-4039(00)93163-0

文献信息

• Desulfonyloxylations of some secondary p-toluenesulfonates of glycosides by lithium triethylborohydride; a high-yielding route to 2- and 3-deoxy sugars
  作者：Hans H. Baer、Hanna R. Hanna

  DOI：10.1016/0008-6215(82)85023-4

  日期：1982.11

  Abstract Lithium triethylborohydride (LTBH) reacts readily with p -toluenesulfonates of methyl 4,6- O -benzylidene-α- d -glucopyranoside ( 4 ) to give deoxyglycosides in > 90% yield. Thus, the 2,3-ditosylate ( 1 ) and the 3-monotosylate ( 2 ) thereof afford methyl 4,6- O -benzylidene-2-deoxy-α- d - ribo -hexopyranoside ( 7 ) in highly regio- and stereo-selective reactions that proceed via methyl 2,3-anhydro-4

  摘要三乙基硼氢化锂（LTBH）与4,6-O-亚苄基-α-d-吡喃葡萄糖苷甲基（4）的对甲苯磺酸酯容易反应，以> 90％的产率得到脱氧糖苷。因此，其2，3-二甲苯磺酸酯（1）及其3-单甲苯磺酸酯（2）以高度区域和立体异构形式提供了甲基4，6-O-亚苄基-2-脱氧-α-d-核糖-己吡喃糖苷（7）。通过甲基2，3-脱水-4，6-O-亚苄基-α-d-吡喃吡喃糖苷（6）和2-单甲苯磺酸酯（8）的4进行的选择性反应得到3-脱氧-α-d-通过相应的2,3-脱水-α-d-甘露吡喃糖苷11的7阿拉伯糖异构体（12）。在一系列相应的β端基异构体中，3-单甲苯磺酸酯14和2-单甲苯磺酸酯16同样被同样地脱磺酰氧基化，但提供了区域异构体脱氧糖苷的混合物，即 3-和2-脱氧-β-d-核糖衍生物20和21，以及2-和3-脱氧-β-d-核糖核酸衍生物22和23。可以表明，这种差异是由于中间的β-糖苷环氧化物18和19（
• Synthesis and structural studies of branched 2-linked trisaccharides related to blood group determinants
  作者：J Duus

  DOI：10.1016/0008-6215(96)00103-6

  日期：1996.7.19

  A series of trisaccharide glycosides, Fuc-(1 --> 2)-beta-Gal-(1 --> 3)-beta-X-OMe (X = GlcNAc, Glc, 2-deoxy-Glc) related to the blood group determinant Led have been synthesised both as their alpha- and beta-Fuc anomers together with the component disaccharide starting compounds. The conformational properties of the six trisaccharides together with their parent disaccharides have been investigated by NMR spectroscopy (proton and carbon chemical shifts and proton NOEs) in combination with computer modeling using the Monte Carlo approach and the HSEA force field using the GEGOP programme. The interaction between the terminal fucose unit and the reducing unit was probed by substitution of the bulky NAc group with hydroxyl and deoxy substituents, respectively. Compounds with severe steric interactions were identified by the non-additivity of their carbon chemical shifts. This was subsequently confirmed by the detailed conformational assessment by NOE spectroscopy and computer modeling. The most severe contacts arose in the alpha-L-Fuc derivatives, whereas the beta-linked L-Fuc derivatives only in one case exhibit severe steric interaction as probed by the NMR parameters. (C) 1996 Elsevier Science Ltd.
• A General Procedure for One-Pot Benzylidenation and Methyl (or Benzyl) Glycosidation of Aldoses
  作者：Jean-Claude Florent、Claude Monneret

  DOI：10.1055/s-1982-29688

  日期：——
• LASZLO, PAL;PELYVAS, ISTVAN F.;SZTARICSKAI, FERENC;SZILAGYI, LASZLO;SOMOG+, CARBOHYDR. RES., 175,(1988) N 2, 227-239
  作者：LASZLO, PAL、PELYVAS, ISTVAN F.、SZTARICSKAI, FERENC、SZILAGYI, LASZLO、SOMOG+

  DOI：——

  日期：——
• US4902791A
  申请人：——

  公开号：US4902791A

  公开（公告）日：1990-02-20