methyl 1,2-dideoxy-D-arabino-hex-1-enopyranuronate | 95530-80-6

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羟基酸及其衍生物
• 英文名称: methyl 1,2-dideoxy-D-arabino-hex-1-enopyranuronate
• 英文别名: methyl D-glucuronate glycal；methyl glucuronate-D-glycal；methyl D-glucuronal；methyl (2S,3S,4R)-3,4-dihydroxy-3,4-dihydro-2H-pyran-2-carboxylate
• CAS: 95530-80-6
• 化学式: C₇H₁₀O₅
• 分子量: 174.153
• InChiKey: FWQNFXKSJBJLBK-SRQIZXRXSA-N

物化性质

• 沸点：
  300.2±42.0 °C(Predicted)
• 密度：
  1.423±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -0.4
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  76
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  methyl 1,2-dideoxy-D-arabino-hex-1-enopyranuronate 在 咪唑 、 4-二甲氨基吡啶 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 5.2h， 生成 methyl 4-O-acetyl-3-O-(tert-butyldimethylsilyl)-glucuronate-D-glycal
  参考文献：
  名称：

  Synthetic Studies of Complex Immunostimulants from Quillaja saponaria:  Synthesis of the Potent Clinical Immunoadjuvant QS-21A_api

  摘要：

  QS-21 is one of the most promising new adjuvants for immune response potentiation and dose-sparing in vaccine therapy given its exceedingly high level of potency and its favorable toxicity profile. Melanoma, breast cancer, small cell lung cancer, prostate cancer, HIV-1, and malaria are among the numerous maladies targeted in more than 80 recent and ongoing vaccine therapy clinical trials involving QS-21 as a critical adjuvant component for immune response augmentation. QS-21 is a natural product immunostimulatory adjuvant, eliciting both T-cell- and antibody-mediated immune responses with microgram doses. Herein is reported the synthesis of QS-21A(api) in a highly modular strategy, applying novel glycosylation methodologies to a convergent construction of the potent saponin immunostimulant. The chemical synthesis of QS-21 offers unique opportunities to probe its mode of biological action through the preparation of otherwise unattainable nonnatural saponin analogues.

  DOI：

  10.1021/ja062364i
• 作为产物：
  描述：

  (2S,3S,4R)-3,4-二乙酰氧基-3,4-二氢-2H-吡喃-2-羧酸甲酯 在 sodium methylate 作用下， 以 甲醇 为溶剂， 以98%的产率得到methyl 1,2-dideoxy-D-arabino-hex-1-enopyranuronate
  参考文献：
  名称：

  d-葡萄糖醛酸和l-艾杜糖醛酸糖的合成与转化

  摘要：

  d-葡糖醛酸糖可以由双丙酮葡萄糖或三-O-乙酰基糖有效地合成，并且可以高产率转化为d-葡糖醛酸的供体和受体。d-葡萄糖醛酸糖基的碱催化的差向异构体提供了进入相应的l-艾杜糖醛酸糖基的途径。d-葡萄糖醛酸和l-艾杜糖醛酸的糖都被转化为糖基化剂，用于合成糖胺聚糖寡糖。

  DOI：

  10.1016/s0040-4039(01)00607-4

文献信息

• Improved and large-scale synthesis of different protected d-glucuronals
  作者：Hannes Mikula、Dominik Matscheko、Markus Schwarz、Christian Hametner、Johannes Fröhlich

  DOI：10.1016/j.carres.2013.01.007

  日期：2013.4

  was converted to methyl 3,4-di-O-acetyl-D-glucuronal applying a novel one-pot protocol, which allowed for large-scale synthesis. Introduction of silyl and benzyl groups was achieved using optimized procedures. Furthermore 3,4,6-tri-O-acetyl-D-glucal was used as starting material for an improved preparation of benzyl protected D-glucuronal, which significantly accelerates and simplifies similar methods

  尽管将不同的受保护的D-葡萄糖醛酸用作制备许多化合物的前体，但文献中仍未描述标准方法和大规模合成方法。在开发不同的受保护D-葡萄糖醛酸ef=https://www.molaid.com/MS_9248 target="_blank">葡萄糖醛酸基供体的过程中，我们开发了几种通用方法，可用于快速，可重复地制备大量关键中间体。应用新型一锅法将D-葡萄糖醛酸内酯转化为甲基3,4-二-O-乙酰基-D-葡萄糖醛酸，可大规模合成。甲硅烷基和苄基的引入是使用优化程序实现的。此外，将3,4,6-三-O-乙酰基-D-葡糖醛用作起始原料，用于改进的苄基保护的D-葡糖醛酸醛的制备，其显着加速并简化了文献中所述的类似方法。
• The First Synthesis of Herbicidin B. Stereoselective Construction of the Tricyclic Undecose Moiety by a Conformational Restriction Strategy Using Steric Repulsion between Adjacent Bulky Silyl Protecting Groups on a Pyranose Ring
  作者：Satoshi Ichikawa、Satoshi Shuto、Akira Matsuda

  DOI：10.1021/ja992608h

  日期：1999.11.1

  The first total synthesis of the nucleoside antibiotic herbicidin B (1b) was achieved, where a novel aldol-type C-glycosidation reaction promoted by samarium diiodide (SmI2) was used as a key step. Treatment of methyl 3,4-O-(1,1,3,3-tetraisopropyl-1,3-disiloxanediyl)-1-phenylthio-2-ulos-β-d-glucuronate (13) with SmI2 in THF regioselectively gave the corresponding 1-enolate, which was readily trapped

  实现了核苷类抗生素除草素 B (1b) 的首次全合成，其中以二碘化钐 (SmI2) 促进的新型羟醛型 C-糖苷化反应为关键步骤。在 THF 中用 处理 3,4-O-(1,1,3,3-四异丙基-1,3-二硅氧烷二基)-1-苯硫基-2-ulos-β-d-葡萄糖醛酸甲酯 (13) 区域选择性地得到相应的 1-烯醇化物，它很容易被 1-β-d-木糖基腺嘌呤 5'-醛衍生物 7 捕获，得到产物 19a，b，为异头混合物。使用 Burgess 内盐对 19a,b 中的 5'-羟基进行脱水得到烯酮 20，随后将其氢化得到十一碳呋喃酮基腺嘌呤衍生物 21。21 的脱保护得到三环糖核苷 23。然而，它是6' 位的除草剂 B。通过使用基于吡喃糖环上相邻大保护基团之间排斥的构象限制策略来构建所需的 6'-α-构型。因此，当甲基 3-O-叔...
• Synthesis of the trisaccharide portion of soyasaponin βg: evaluation of a new glucuronic acid acceptor
  作者：Karen Plé

  DOI：10.1016/s0008-6215(03)00195-2

  日期：2003.7

  The synthesis of the trisaccharide portion of soyasaponin betag was successfully achieved using a new glucuronic acid acceptor: methyl 1-O-allyl-3 4-di-O-methoxymethyl-beta-D-glucuronate (9). This compound and methyl 1-O-allyl-3,4-di-O-tert-butyldimethyl-silyl-beta-D-glucuronate (8) were both prepared from glucuronolactone via a glycal intermediate. The former compound 9 was successfully coupled to ethyl 2-O-benzoyl-3,4,6-tri-O-benzyl-1-thio-beta-D-galactopyranoside (13) in excellent yield. Synthesis of the protected trisaccharide was then completed by the addition of a suitably protected rhamnose derivative to the disaccharide portion. The reactivity of the glucuronic acid derivative 9 was also explored with trichloroacetimidate and fluoride donors. (C) 2003 Elsevier Science Ltd. All rights reserved.
• Synthesis and Biological Evaluation of Protein:Geranylgeranyltransferase I Inhibitors Based on the CaaX Box: Incorporation of Sugar Amino Acids as Dipeptide Isosters
  作者：Farid El Oualid、Leon Bruining、Ingrid M. Leroy、Louis H. Cohen、Jacques H. van Boom、Gijs A. van der Marel、Herman S. Overkleeft、Mark Overhand

  DOI：10.1002/1522-2675(200210)85:10<3455::aid-hlca3455>3.0.co;2-#

  日期：2002.10

  Two orthogonally protected SAA building blocks were used in the synthesis of eight novel analogues of the CaaX motif present in the natural substrates of protein:geranylgeranyltransferase I (PGGT 1), an enzyme involved in the post-translation at modification of oncogenic proteins, e.g., Ras K-4B. Remarkably, two compounds, which are stereochemically different at the C(F) position of the SAA residue and at C(2) of the Cys residue, showed comparable activity in a PGGT-1 assay. Our results indicate that both (1,5-cis) and (1,5-trans) SAA building blocks can be used for the development of novel PGGT I inhibitors.