methyl 2,3-di-O-benzoyl-α-D-arabinofuranoside | 204918-51-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl 2,3-di-O-benzoyl-α-D-arabinofuranoside
• 英文别名: methyl 2,3-O-dibenzoyl-α-D-arabinofuranoside；[(2R,3R,4S,5S)-4-benzoyloxy-2-(hydroxymethyl)-5-methoxyoxolan-3-yl] benzoate
• CAS: 204918-51-4
• 化学式: C₂₀H₂₀O₇
• 分子量: 372.375
• InChiKey: KYBHURZCCOIFKJ-WWNBULGVSA-N

物化性质

• 沸点：
  519.2±50.0 °C(Predicted)
• 密度：
  1.32±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  27
• 可旋转键数：
  8
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  91.3
• 氢给体数：
  1
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  methyl 2,3-di-O-benzoyl-α-D-arabinofuranoside 在 palladium dihydroxide 4-二甲氨基吡啶 、 2,6-二叔丁基-4-甲基吡啶 、 乙酰溴 、 三氟甲磺酸酐 、 4 A molecular sieve 、 氢气 、 氰化汞 、 溶剂黄146 、 N,N'-二环己基碳二亚胺 、 三氟乙酸 、 mercury dibromide 、 肼 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 水 、 乙酸乙酯 、 乙腈 为溶剂， 反应 8.83h， 生成 methyl [(2,3-di-O-benzoyl-5-O-levulinyl-α-D-arabinofuranosyl)-(1->5)-(2,3-di-O-benzoyl-α-D-arabinofuranosyl)]-(1->5)-2,3-di-O-benzoyl-α-D-arabinofuranoside
  参考文献：
  名称：

  Acceptor-Dependent Stereoselective Glycosylation:  2‘-CB Glycoside-Mediated Direct β-d-Arabinofuranosylation and Efficient Synthesis of the Octaarabinofuranoside in Mycobacterial Cell Wall

  摘要：

  A reliable and generally applicable direct method for the stereoselective beta-arabinofuranosylation employing a 2'-carboxybenzyl arabinofuranoside as the glycosyl donor has been established. The acyl-protective group on glycosyl acceptors is essential for the beta-stereoselectivity. The power of the present acceptor-dependent glycosylation method was demonstrated by the efficient synthesis of the octaarabinofuranoside in arabinogalactan and lipoarabinomannan found in mycobacterial cell wall.

  DOI：

  10.1021/ol0510668
• 作为产物：
  描述：

  methyl D-arabinofuranoside 在 吡啶 、 四丁基氟化铵 作用下， 以 四氢呋喃 为溶剂， 生成 methyl 2,3-di-O-benzoyl-α-D-arabinofuranoside
  参考文献：
  名称：

  Synthetic arabinofuranosyl oligosaccharides as Mycobacterial arabinosyltransferase substrates

  摘要：

  A series of arabinofuranosyl oligosaccharides found as constituent parts of the polysaccharide portion of the cell wall of Mycobacterium tuberculosis have been chemically synthesized. Screening of these oligosaccharides as substrates for arabinosyltransferases present in mycobacterial membrane preparations suggests that modified oligosaccharide analogs as small as disaccharides may be inhibitors of glycan biosynthesis. Such inhibitors would be of potential utility as lead compounds in the identification of new drugs for the treatment of mycobacterial infections. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0960-894x(98)00049-3

文献信息

• Reactivity switching and selective activation of C-1 or C-3 in 2,3-unsaturated thioglycosides
  作者：Arunima Mukherjee、Narayanaswamy Jayaraman

  DOI：10.1016/j.carres.2011.04.039

  日期：2011.9

  activation of C-1 or C-3 in 2,3-unsaturated thioglycosides, namely, 2,3-dideoxy-1-thio-D-hex-2-enopyranosides are reported. The reactivity switching allowed activation of either C-1 or C-3, with the use of either N-iodosuccinimide (NIS)/triflic acid (TfOH) or TfOH alone. C-1 glycosylation with alcohol acceptors occurred in the presence of NIS/TfOH, without the acceptors reacting at C-3. On the other

  据报道在2，3-不饱和硫代糖苷，即2，3-二脱氧-1-硫代-D-hex-2-enopyranosides中的C-1或C-3的反应性转换和选择性活化。反应性转换允许单独使用N-碘琥珀酰亚胺（NIS）/三氟甲磺酸（TfOH）或TfOH活化C-1或C-3。在NIS / TfOH存在下，用醇受体进行的C-1糖基化反应不会使受体在C-3处发生反应。另一方面，2，3-不饱和硫代糖苷与三氟甲磺酸介导的醇的反应导致C-1乙硫基分子内转位至C-3，形成3-乙硫基糖。所得的糖用醇进行糖基化，得到3-乙硫基-2-脱氧糖苷。但是，当使用硫醇作为受体时，仅在C-3处产生立体选择性加成，从而形成C-1，
• Stereodirecting Effect of C3-Ester Groups on the Glycosylation Stereochemistry of L-Rhamnopyranose Thioglycoside Donors: Stereoselective Synthesis of α- and β-L-Rhamnopyranosides
  作者：Jin-Cai Lei、Yu-Xiong Ruan、Sheng Luo、Jin-Song Yang

  DOI：10.1002/ejoc.201901186

  日期：2019.10.9

  tuning effect of C3‐ester groups on the glycosylation stereochemistry of Lrhamnopyranose (L‐Rha) ethyl thioglycosides is described. The 3‐O‐arylcarbonyl or levulinoyl carrying L‐Rha thioglycosides undergo highly α‐selective glycosylation while the glycosylation of the 3‐O‐4‐nitropicoloyl and 2‐pyrazinecarbonyl L‐Rha thioglycosides displays β‐stereoselectivity

  描述了C3-酯基团对Lrhamnopyranose（L-Rha）乙基硫代糖苷的糖基化立体化学的调节作用。带有L-Rha硫糖苷的3-O-芳基羰基或乙酰丙酰基经历高度α-选择性糖基化作用，而3-O-4-亚硝基甲酰基和2-吡嗪羰基L-Rha硫糖苷的糖基化表现出β-立体选择性
• β-Arabinofuranosylation Using 5-<i>O</i>-(2-Quinolinecarbonyl) Substituted Ethyl Thioglycoside Donors
  作者：Qiang-Wei Liu、Hua-Chao Bin、Jin-Song Yang

  DOI：10.1021/ol401755e

  日期：2013.8.2

  A new β-stereoselective d- and l-arabinofuranosylation method has been developed employing 5-O-(2-quinolinecarbonyl) substituted arabinosyl ethyl thioglycosides as glycosyl donors. The approach allows a wide range of acceptor substrates to be used; the β-selectivity is good-to-excellent. Stereoselective synthesis of a mannose-capped octasaccharide portion from a mycobacterial cell wall polysaccharide

  已经开发出一种新的β-立体选择性的d-和1- a-呋喃糖基糖基化方法，其使用5 - O-（2-喹啉羰基）取代的阿拉伯糖基乙基硫代糖苷作为糖基供体。该方法允许使用广泛的受体底物。β-选择性是优良的。然后从分枝杆菌细胞壁多糖中立体选择性地合成了甘露糖封端的八糖部分，以证明该方法的实用性。
• 4,6-Di-O-Benzylidenyl group-directed preparation of 2-deoxy-2-azido-α-d-galactopyranosides promoted by 3-O-TBDPS
  作者：Xing-Yong Liang、Jing Yang、Zhong-Hao Qiu、Lei Wang、Todd L. Lowary、Hua-Jun Shawn Fan

  DOI：10.1016/j.carres.2021.108237

  日期：2021.2

  In this study, we designed a method to prepare 2-deoxy-2-azido-α-d-galactopyranosidic bonds using 4,6-di-O-benzylidenyl-3-O-t-butyldiphenylsilyl protected 2-deoxy-2-azido-1-thio-d-galactopyranoside 5 as donors. The donor 5 gives a good to excellent α-selectivity in the glycosylation with secondary alcohols, which was found to be associated with the benzylidenyl on 4,6-di-O and TBDPS on 3-O of the donor

  在这项研究中，我们设计了一种使用4,6-二-O-苄叉基-3-叔丁基二苯基甲硅烷基保护的2-脱氧-2-叠氮基-1制备2-脱氧-2-叠氮基-α-d-吡喃半乳糖苷键的方法。 -硫代-d-吡喃半乳糖苷5作为供体。供体5在与仲醇的糖基化中具有良好的优异的α-选择性，这与供体5的4，6-二-O上的亚苄基和3-O上的TBDPS有关。供体6和7，3-O-TBDPS可以增加硫糖苷的活性，而4,6-二-O-苄基上的孤对增强了gg-协同作用，这在提高立体选择性方面发挥了作用。最后，通过合成含α-半乳糖胺的五糖26证明了该方法。
• Regioselective Glycosylation Method Using Partially Protected Arabino- and Galactofuranosyl Thioglycosides as Key Glycosylating Substrates and Its Application to One-Pot Synthesis of Oligofuranoses
  作者：Li-Min Deng、Xia Liu、Xing-Yong Liang、Jin-Song Yang

  DOI：10.1021/jo300084g

  日期：2012.4.6

  development of a novel regioselective furanosylation methodology using partially protected furanosyl thioglycosides as central glycosylating building blocks and its application in the efficient one-pot synthesis of a series of linear and branched-type arabino- and galactofuranoside fragments structurally related to the cell wall polysaccharides of Mycobacterium tuberculosis, Streptococcus pneumoniae serostype

  我们在本文中描述了使用部分保护的呋喃糖基硫糖苷作为中心糖基化结构单元的新型区域选择性呋喃糖基化方法的开发及其在一系列结构上与之相关的线性和支链型阿拉伯糖和半乳糖呋喃糖苷片段的有效一锅合成中的应用结核分枝杆菌，肺炎链球菌血清型35A和甜菜的细胞壁多糖。