α-L-arabinopyranoside | 181040-86-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: α-L-arabinopyranoside
• 英文别名: benzyl-α-L-arabinopyranoside；Benzyl-α-L-arabinopyranosid；Benzyl-β-L-arabinopyranosid；Benzyl-β-D-arabopyranosid；(2R,3R,4S,5S)-2-phenylmethoxyoxane-3,4,5-triol
• CAS: 181040-86-8
• 化学式: C₁₂H₁₆O₅
• 分子量: 240.256
• InChiKey: XUGMDBJXWCFLRQ-NNYUYHANSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.5
• 重原子数：
  17
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  79.2
• 氢给体数：
  3
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  α-L-arabinopyranoside 在 吡啶 、 N-碘代丁二酰亚胺 、 ammonium cerium(IV) nitrate 、 三氟甲磺酸 、 二正丁基氧化锡 作用下， 以 甲醇 、 二氯甲烷 、 水 、 乙腈 为溶剂， 反应 21.17h， 生成 benzyl 2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl-(1->4)-2-O-acetyl-α-L-arabinopyranoside
  参考文献：
  名称：

  Synthesis of l-arabinose-containing fragments of the oat root saponin Avenacin A-1

  摘要：

  Chemical syntheses of two disaccharides, benzyl beta-D-glucopyranosyl-(1 --> 2)-alpha-L-arabinopyranoside (1) and benzyl beta-D-glucopyranosyl-(1 --> 4)-alpha-L-arabinopyranoside (2), and a trisaccharide, benzyl beta-D-glucopyranosyl-(1 --> 2)-3-O-acetyl-4-O-(beta-D-glucopyranosyl)-alpha-L-arabinopyranoside (3), related to oat root triterpenoid saponin Avenacin A-1 are reported. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.carres.2004.02.021
• 作为产物：
  描述：

  benzyl-(tri-O-acetyl-α-L-arabinopyranoside) 在 甲醇 、 barium methoxide 作用下， 生成 α-L-arabinopyranoside
  参考文献：
  名称：

  Reductive Cleavage of Benzyl Glycosides for Relating Anomeric Configurations. Preparation of Some New Benzyl Pentosides¹

  摘要：

  DOI：

  10.1021/ja01147a076

文献信息

• Samarium Trifluoromethanesulfonate: An Efficient Moisture Tolerant Acylation Catalyst under Solvent‐Free Condition
  作者：Bimalendu Roy、Somnath Dasgupta、Vishal Kumar Rajput、Balaram Mukhopadhyay

  DOI：10.1080/07328300801991245

  日期：2008.5

  Samarium trifluoromethanesulfonate catalyzed the acylation of phenols, alcohols, thiols, free reducing sugars, and glycosides in excellent yields at ambient temperature under solvent‐free condition using stoichiometric amounts of various anhydrides.

  在无溶剂条件下，使用化学计量的各种酸酐，三氟甲烷磺酸催化苯酚，醇，硫醇，游离还原糖和糖苷的酰化反应具有优异的收率。
• Regioselective benzoylation of glycopyranosides by benzoic anhydride in the presence of Cu(CF3COO)2
  作者：Evgeny V. Evtushenko

  DOI：10.1016/j.carres.2012.06.020

  日期：2012.10

  Benzoylation of methyl and benzyl glycopyranosides by benzoic anhydride in acetonitrile in the presence of copper(II) trifluoroacetate as a promoter has given monobenzoates with a good yield and high regioselectivity. The composition of monobenzoates depended both on a configuration of hydroxyl groups and on a configuration of aglycone. The simple syntheses of the monobenzoates of some glycosides are

  在三氟乙酸铜（II）作为促进剂的存在下，在乙腈中通过苯甲酸酐在苯甲腈中对甲基和苄基吡喃葡萄糖苷进行苯甲酰化，得到了单苯甲酸酯，具有良好的收率和较高的区域选择性。单苯甲酸酯的组成取决于羟基的构型和糖苷配基的构型。提供了一些糖苷的单苯甲酸酯的简单合成。
• Sulfuric acid immobilized on silica: an efficient promoter for one-pot acetalation–acetylation of sugar derivatives
  作者：Balaram Mukhopadhyay

  DOI：10.1016/j.tetlet.2006.04.118

  日期：2006.6

  Sulfuric acid immobilized on silica gel has been used as an efficient and safe alternative promoter for acetalation and subsequent acetylation of sugar glycosides using stoichiometric reagents without work-up. The synthesis of different types of per-O-acetylated acetals/ketals has been achieved from various types of O- and S-glycosides in excellent yields.

  固定在硅胶上的硫酸已被用作一种高效，安全的替代促进剂，用于使用化学计量试剂进行糖苷的缩醛化和随后的乙酰化，而无需进行后处理。已经从各种类型的O-和S-糖苷以优异的产率实现了不同类型的过-O-乙酰化缩醛/缩酮的合成。
• Synthesis of oleanolic disaccharide derivatives
  作者：Shu Chen Pei、Jian Bo Wu、Fan Lei、Shan Qian、Li Hai、Yong Wu

  DOI：10.1016/j.cclet.2012.01.022

  日期：2012.4

  and possesses many attractive biological activities. Recently, some oleanolic derivatives were reported to have interesting anti-tumor activities. Herein, using association principle of drug design, OA disaccharide 17 was designed and synthesized by coupling a-L -rhamnopyranosyl-(1→2)- a-L -arabinopyranosyl disaccharide moiety, which has proved to be a unique sugar sequence with strongly antitumor

  摘要齐墩果酸1广泛存在于食品，药材等植物中，并具有许多诱人的生物学活性。最近，据报道一些齐墩果酸衍生物具有有趣的抗肿瘤活性。在此，利用药物设计的结合原理，通过偶联αL-鼠李糖基-（1→2）-αL-阿拉伯吡喃糖基二糖部分，设计合成了OA二糖17，其已被证明是具有强抗肿瘤活性的独特糖序列，并被修饰。在C-17上带有腈的OA。
• Effective Organotin-Mediated Regioselective Functionalization of Unprotected Carbohydrates
  作者：Yixuan Zhou、Kuo-Shiang Liao、Tzu-Yin Chen、Yves S. Y. Hsieh、Chi-Huey Wong

  DOI：10.1021/acs.joc.3c00397

  日期：2023.6.2

  carbohydrates. The counteranion of tetrabutylammonium ion with a weak coordination ability plays a crucial role in the improved regioselective reactions. A convenient access to the intermediates of synthetic value is also demonstrated in the organotin-mediated regioselective tosylation of unprotected carbohydrates, followed by the nucleophilic inversion reaction to give sulfur-containing and azide-modified

  基于常用的有机锡介导的反应，在存在伯 OH 基团的情况下，未保护的碳水化合物在仲 OH 基团上的区域选择性功能化得到了改进。我们发现，在甲苯中用四丁基溴化铵预活化二丁基亚锡基缩醛中间体是改善未保护碳水化合物高效、高产和区域选择性甲苯磺酰化、苯甲酰化或苄基化条件的关键。具有弱配位能力的四丁基铵离子的抗衡阴离子在改善区域选择性反应中起着至关重要的作用。在有机锡介导的未受保护碳水化合物的区域选择性甲苯磺酰化中也证明了一种方便地获得具有合成价值的中间体，