2,3,5-tri-O-benzyl-D-xylofuranose

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2,3,5-tri-O-benzyl-D-xylofuranose
• 英文别名: 2,3,5-tri-O-benzyl-D-xylose；2,3,5-tri-O-benzyl-α/β-D-xylofuranose；2,3,5-O-tri-benzyl-D-xylofuranose；2,3,5-tri-O-benzylxylofuranose；(3R,4S,5R)-3,4-bis(phenylmethoxy)-5-(phenylmethoxymethyl)oxolan-2-ol
• 化学式: C₂₆H₂₈O₅
• 分子量: 420.505
• InChiKey: NAQUAXSCBJPECG-SIDNZMCZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  31
• 可旋转键数：
  10
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.31
• 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：

  2,3,5-tri-O-benzyl-D-xylofuranose 在 palladium on activated charcoal 吡啶 、 盐酸 、 正丁基锂 、 盐酸羟胺 、 氢气 、 sodium carbonate 、 臭氧 、 magnesium 作用下， 以 四氢呋喃 、 甲醇 、 正己烷 、 二氯甲烷 、 水 为溶剂， -78.0~60.0 ℃ 、101.33 kPa 条件下， 反应 129.37h， 生成 (2S,3S,4S,5S)-2-(3-hydroxy-4-methoxyphenyl)-5-hydroxymethyl-pyrrolidine-3,4-diol
  参考文献：
  名称：

  Radicamines A和B：绝对构型的合成和修订。

  摘要：

  [反应：见正文]从D-木糖开始，对映体1和2的对映体合成完成了对拉迪克胺A和B的拟议结构。1和2的（1）H和（13）C NMR光谱均与天然产物的光谱相同，但旋光度测量表明1和2实际上分别是天然菊糖胺A和B的对映体。

  DOI：

  10.1021/ol0609210
• 作为产物：
  描述：

  D-吡喃木糖 在 盐酸 、 硫酸 、 sodium hydride 作用下， 以 水 为溶剂， 生成 2,3,5-tri-O-benzyl-D-xylofuranose
  参考文献：
  名称：

  An Olefin Metathesis Route for the Preparation of (1→6)-Linked C-Disaccharide Glycals. A Convergent and Flexible Approach to C-Saccharide Synthesis

  摘要：

  A convergent route to a variety of C-1-disaccharide glycals based on the olefin metathesis reaction of enol ethers and alkenes is described. The DCC-mediated coupling reaction of a variety of pentose enitols (la-c) with a number of C-5- and C-6-monosaccharide carboxylic acids (2a-e) gave the corresponding esters 3a-1 in good yield. Methylenation of these compounds was followed by ring-closing metathesis, mediated by the Schrock molybdenum catalyst 8 in warm toluene, to provide the target C-disaccharide glycals 5a-1. The formed enol ether double bond in 5a was then transformed, via standard manipulations, into a variety of C-disaccharide derivatives 21-25.

  DOI：

  10.1021/jo0005159

文献信息

• New Uses for the Burgess Reagent in Chemical Synthesis: Methods for the Facile and Stereoselective Formation of Sulfamidates, Glycosylamines, and Sulfamides
  作者：K. C. Nicolaou、Scott A. Snyder、Deborah A. Longbottom、Annie Z. Nalbandian、Xianhai Huang

  DOI：10.1002/chem.200400503

  日期：2004.11.19

  Although the Burgess reagent (methoxycarbonylsulfamoyltriethylammonium hydroxide, inner salt) has found significant use in chemical synthesis as a dehydrating agent, almost no work has been directed towards its potential in other synthetic applications. As this article will detail, we have found that the Burgess reagent is remarkably effective at accomplishing a number of non-dehydrative synthetic

  尽管Burgess试剂（甲氧基羰基氨磺酰基三乙铵氢氧化物，内盐）已发现在化学合成中作为脱水剂具有重要用途，但几乎没有工作针对其在其他合成应用中的潜力。正如本文将要详细介绍的那样，我们发现，将Burgess试剂应用于适当的底物上，例如从1,2-二醇或环氧醇，α-和C-形成氨基磺酸盐时，在完成许多非脱水合成任务方面非常有效。来自碳水化合物的β-糖胺和来自1,2-氨基醇的环状磺酰胺 除了描述这些新反应歧管的功能之外，我们还描述了一组替代的Burgess型试剂的构造，这些试剂进一步扩展了这些新反应的范围。
• Stereoselective Synthesis of 2-Deoxy-2-iodo-glycosides from Furanoses. A New Route to 2-Deoxy-glycosides and 2-Deoxy-oligosaccharides of <i>r</i><i>ibo </i>and <i>x</i><i>ylo</i> Configuration
  作者：Miguel Ángel Rodríguez、Omar Boutureira、Xavier Arnés、M. Isabel Matheu、Yolanda Díaz、Sergio Castillón

  DOI：10.1021/jo051461b

  日期：2005.12.1

  procedure involves three reactions: Wittig−Horner olefination to give alkenyl sulfanyl derivatives, electrophilic iodine-induced cyclization to give phenyl 2-deoxy-2-iodo-1-thio-hexo-glycosides, and glycosylation. Protected furanoses 1, 3, and 6−11, which include examples of the four possible isomeric configurations of furanoses, were reacted with diphenyl phenylsulfanylmethyl phosphine oxide to give the

  据报道从呋喃糖酶立体选择性合成2-脱氧-2-碘-己-和-庚-吡喃糖基糖苷的一般方法。拟议的方法提供了一种获取2-脱氧寡糖的新途径。该程序涉及三个反应：Wittig-Horner烯化生成链烯基硫烷基衍生物，亲电碘诱导的环化生成苯基2-脱氧-2-碘-1-硫代-己糖苷，以及糖基化。保护呋喃糖1，3，和6 - 11，其包括呋喃糖的四种可能的异构体构型的实施例中，与碳酸二苯苯基硫基甲基氧化膦，得到链烯基硫烷基衍生物进行反应2，4，和12− 16。这些化合物，得到苯基2-脱氧-2-碘-1-硫代糖苷的碘诱导的环化18，20，和22 - 27具有实际上完全区域选择性和立体选择性。6-产品内的环化，其中在C-2中的碘是一个顺式在C-3与烷氧基的关系，进行了几乎全部产生。具有核糖或木糖构型的化合物比具有其他构型的化合物获得更好的产率。化合物18，20，和22 - 27已发现在胆固醇和吡喃葡萄糖苷29a的糖基化
• Immunostimulatory and Antitumor Activities of Monoglycosylceramides Having Various Sugar Moieties.
  作者：Kazuhiro MOTOKI、Masahiro MORITA、Eiichi KOBAYASHI、Takeshi UCHIDA、Kohji AKIMOTO、Hideaki FUKUSHIMA、Yasuhiko KOEZUKA

  DOI：10.1248/bpb.18.1487

  日期：——

  Ten kinds of monoglycosylceramides (MonoCers), having the same ceramide portion and different sugar moieties, were synthesized and their immunostimulatory and antitumor activities were examined. The manner of combination between sugar and ceramide has been demonstrated to affect the manifestation of immunostimulatory and resultant antitumor activities of MonoCers, and in the case of D-MonoCers having the D-sugar, α-D-MonoCers (sugar combined to ceramide in an α-configuration) show stronger activities than β-D-MonoCers. Furthermore, the form of sugar, not the furanose-form but the pyranose-form, and the 2''-and 4''-hydroxyl groups of the pyranose-form of sugar, seemed to play an important role in the manifestation of the activities of α-D-MonoCers.

  合成了十种单糖基神经酰胺（MonoCers），它们具有相同的神经酰胺部分和不同的糖基部分，并研究了它们的免疫刺激和抗肿瘤活性。糖与神经酰胺的结合方式已被证明会影响MonoCers的免疫刺激及其相应的抗肿瘤活性的表现。对于含有D-糖的D-MonoCers，α-D-MonoCers（糖以α-构型与神经酰胺结合）显示出比β-D-MonoCers更强的活性。此外，糖的形式，不是呋喃糖形式而是吡喃糖形式，以及吡喃糖形式的糖的2''和4''-羟基，似乎在α-D-MonoCers的活性表现中起着重要作用。
• Iodine Monochloride (ICl) as a Highly Efficient, Green Oxidant for the Oxidation of Alcohols to Corresponding Carbonyl Compounds
  作者：Peng Wei、Datong Zhang、Zhigang Gao、Wenqing Cai、Weiren Xu、Lida Tang、Guilong Zhao

  DOI：10.1080/00397911.2015.1005630

  日期：2015.6.18

  ABSTRACT Iodine monochloride (ICl) was discovered to be a highly efficient, green oxidant, which can oxidize aldose hemiacetals, diarylmethanols, arylalkylmethanols, anddialkylmethanols to the corresponding aldose lactones, diarylmethanones, arylalkylmethanones, and dialkylmethanones, respectively, in high yields. ICl as a green, metal-free oxidant is characterized by mild reaction condition, short reaction

  摘要 一氯化碘 (ICl) 被发现是一种高效的绿色氧化剂，可以将醛糖半缩醛、二芳基甲醇、芳烷基甲醇和二烷基甲醇分别以高产率氧化成相应的醛糖内酯、二芳基甲酮、芳基烷基甲酮和二烷基甲酮。ICl作为一种绿色无金属氧化剂，具有反应条件温和、反应时间短、收率好、适用范围广等特点。图形概要
• Au^III-Halide/Phenylacetylene-Cata­lysed Glycosylations Using 1-<i>O</i>-Acetyl­furanoses and Pyranose 1,2-Ortho­esters as Glycosyl Donors
  作者：Asadulla Mallick、Yakkala Mallikharjunarao、Parasuraman Rajasekaran、Rashmi Roy、Yashwant D. Vankar

  DOI：10.1002/ejoc.201501245

  日期：2016.1

  1-O-Acetylfuranoses and pyranose 1,2-orthoesters were activated with an AuIII halide/phenylacetylene relay catalyst system, and they acted as excellent glycosyl donors. Thus, 1-O-acetyl-D-ribofuranose, 1-O-acetyl-D-lyxofuranose, and 1,2-orthoesters selectively gave the corresponding 1,2-trans glycosides, whereas 1-O-acetyl-D-arabinofuranose and 1-O-acetyl-D-xylofuranose both gave mixtures of 1,2-trans

  1-O-乙酰呋喃糖和吡喃糖 1,2-原酸酯用 AuIII 卤化物/苯乙炔中继催化剂系统活化，它们是优良的糖基供体。因此，1-O-乙酰基-D-呋喃核糖、1-O-乙酰基-D-lyxofuranose 和 1,2-原酸酯选择性地产生相应的 1,2-反式糖苷，而 1-O-乙酰基-D-阿拉伯呋喃糖和1-O-乙酰基-D-呋喃木糖均产生1,2-反式和1,2-顺式糖苷的混合物，其中以1,2-反式糖苷为主。