2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1→4)-2,3,6-tri-O-benzoyl-α-D-glucopyranosyl bromide | 61198-91-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1→4)-2,3,6-tri-O-benzoyl-α-D-glucopyranosyl bromide
• 英文别名: Bz(-2)[Bz(-3)][Bz(-4)][Bz(-6)]Gal(b1-4)[Bz(-2)][Bz(-3)][Bz(-6)]a-Glc1Br；[(2R,3S,4S,5R,6S)-3,4,5-tribenzoyloxy-6-[(2R,3R,4S,5R,6R)-4,5-dibenzoyloxy-2-(benzoyloxymethyl)-6-bromooxan-3-yl]oxyoxan-2-yl]methyl benzoate
• CAS: 61198-91-2
• 化学式: C₆₁H₄₉BrO₁₇
• 分子量: 1133.95
• InChiKey: BZSUENANYCQEJR-SWBVDFICSA-N

物化性质

• 密度：
  1.48±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  11.8
• 重原子数：
  79
• 可旋转键数：
  25
• 环数：
  9.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  212
• 氢给体数：
  0
• 氢受体数：
  17

反应信息

• 作为反应物：
  描述：

  2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1→4)-2,3,6-tri-O-benzoyl-α-D-glucopyranosyl bromide 在 sodium azide 、 18-冠醚-6 、 4 A molecular sieve 、 sodium methylate 、 silver trifluoromethanesulfonate 作用下， 以 甲醇 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 54.0h， 生成 2-azidoethyl β-D-galactopyranosyl-(1->4)-β-D-glucopyranoside
  参考文献：
  名称：

  Synthesis and molecular recognition of carbohydrate-centered multivalent glycoclusters by a plant lectin RCA120

  摘要：

  Water soluble and lectin-recognizable carbohydrate-centered glycoclusters were prepared efficiently by the Huisgen 1,3-cycloaddition reaction of methyl-2,3,4,6-tetra-O-propargyl beta-D-galactopyranoside with 2-azidoethyl glycosides of lactose and N-acetyllactosamine. Their binding by a plant lectin RCA(120) was examined by capillary affinity electrophoresis using fluorescence-labeled asialoglycans from human alpha 1-acid glycoprotein. The glycoclusters showed 400-fold stronger inhibitory effect than free lactose, manifesting strong multivalency effect. (c) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2005.06.036
• 作为产物：
  描述：

  1,2,3,6,2',3',4',6'-octa-O-benzoyllactose 在 氢溴酸 、 溶剂黄146 作用下， 以 二氯甲烷 为溶剂， 以91%的产率得到2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl-(1→4)-2,3,6-tri-O-benzoyl-α-D-glucopyranosyl bromide
  参考文献：
  名称：

  糖基巯基的立体选择性差向异构

  摘要：

  糖基硫醇广泛用于立体选择性S-糖苷合成中。使用TiCl 4获得了它们从1,2-反式到1,2-顺式硫醇的差向异构化（例如，在硫代吡喃葡萄糖中赤道到轴向差向异构），而SnCl 4促进了它们的轴向-赤道差向异构。该方法包括用于立体选择性β- d-甘露聚糖和β- 1- rhamnopyranosyl硫醇形成的应用。当使用SnCl 4时，络合物的形成解释了赤道偏爱，而TiCl 4可以通过1,3-氧杂硫杂环戊烷的形成使平衡向1，2-顺式硫醇转移。

  DOI：

  10.1021/acs.orglett.7b02760

文献信息

• A new glycosidation method through nitrite displacement on substituted nitrobenzenes
  作者：Xavier Álvarez-Micó、Mario J.F. Calvete、Michael Hanack、Thomas Ziegler

  DOI：10.1016/j.carres.2006.11.017

  日期：2007.2

  protected 1-OH and 1-SH glycoses in the glucose, glucosamine, galactose, mannose, and lactose series react with nitrobenzenes activated by one or two electron withdrawing substituents like nitro and cyano to afford the corresponding aryl glycosides in 50-100% yield. The S(N)Ar displacement of nitrite by 1-OH glycoses is reversible and gives predominantly the alpha-glycosides, whereas 1-SH glycoses do not

  葡萄糖，葡糖胺，半乳糖，甘露糖和乳糖系列中的苄基，苯甲酰基和乙酰基保护的1-OH和1-SH糖基与由一个或两个吸电子取代基（如硝基和氰基）活化的硝基苯反应，得到相应的芳基糖苷50-100％的产率。1-OH糖苷对亚硝酸盐的S（N）Ar置换是可逆的，并且主要产生α-糖苷，而1-SH糖苷则不会发生异化作用而提供β-糖苷。因此，制备的二氰基苯基糖苷是用于通过模板合成制备酞菁-糖缀合物的有用的结构单元。
• Substrate Specificity of β-Primeverosidase, A Key Enzyme in Aroma Formation during Oolong Tea and Black Tea Manufacturing
  作者：Seung-Jin MA、Masaharu MIZUTANI、Jun HIRATAKE、Kentaro HAYASHI、Kensuke YAGI、Naoharu WATANABE、Kanzo SAKATA

  DOI：10.1271/bbb.65.2719

  日期：2001.1

  monoglycoside of 2-phenylethanol to investigate the substrate specificity of the purified beta-primeverosidase from fresh leaves of a tea cultivar (Camellia sinensis var. sinensis cv. Yabukita) in comparison with the apparent substrate specificity of the crude enzyme extract from tea leaves. The crude enzyme extract mainly showed beta-primeverosidase activity, although monoglycosidases activity was present

  我们合成了9种二糖苷和2-苯基乙醇单糖苷，以研究茶树种（Camellia sinensis var。sinensis cv。Yabukita）鲜叶中纯化的β-primeverosidase的底物特异性，并比较其表面底物特异性。茶叶中的粗酶提取物。粗酶提取物主要表现出β-primeverosidase活性，尽管在一定程度上存在单糖苷酶活性。纯化的β-primeverosidase对糖蛋白部分显示非常狭窄的底物特异性，尤其是对β-primeverosyl（6-O-β-D-吡喃吡喃糖基-β-D-葡萄糖基吡喃糖基）部分的特异性。这些酶会水解天然存在的二糖苷，例如β-primeveroside，β-vicianoside，β-acuminoside，β-龙胆苷和6-O-α-L-阿拉伯呋喃糖基-β-D-吡喃葡萄糖苷，但无法水解合成的非天然二糖苷。纯化的酶对2-苯乙基β-D-吡喃葡萄糖苷没有活性。该酶将
• [EN] SYNTHETIC METHODS FOR THE LARGE SCALE PRODUCTION FROM GLUCOSE OF ANALOGS OF SPHINGOSINE, AZIDOSPHINGOSINE, CERAMIDES, LACTOSYL CERAMIDES, AND GLYCOSYL PHYTOSPHINGOSINE<br/>[FR] METHODES DE SYNTHESE PERMETTANT LA PRODUCTION A GRANDE ECHELLE A PARTIR DE GLUCOSE D'ANALOGUES DE SPHINGOSINE, AZIDOSPHINGOSINE, CERAMIDES, LACTOSYLCERAMIDES, ET GLYCOSYLE PHYTOSPHINGOSINE
  申请人：BUNDLE DAVID R

  公开号：WO2003101937A1

  公开（公告）日：2003-12-11

  Synthetic methods are disclosed for the production from glucose of analogs of sphingosine, azidosphingosine, ceramides, lactosyl ceramides, glycosyl phytosphingosine, and enantiomeric derivatives of phytosphingosine and/or its homologues, for use in pharmaceutical applications. The disclosed syntheses are simple, direct and easily scaled.

  揭示了一种从葡萄糖生产类似物的合成方法，包括鞘氨醇、偶氮鞘氨醇、酰胺、乳糖基酰胺、糖基植物鞘氨醇以及植物鞘氨醇及/或其同系物的对映体衍生物，用于药物应用。所揭示的合成方法简单、直接且易于扩展。
• Ionic Liquid [bmim]PF₆-Mediated Synthesis of 1,2-Orthoesters of Carbohydrates and the Glycosidation Reactions of 4-Pentenyl Orthoesters
  作者：Saithalavi Anas、Valiyaveetil Sanjayan Sajisha、Rani Rajan、Rajasekaran Thirumalai Kumaran、Kokkuvayil Vasu Radhakrishnan

  DOI：10.1246/bcsj.80.553

  日期：2007.3.15

  A facile synthesis of the 1,2-orthoesters of carbohydrates in the ionic liquid [bmim]PF6 without a quaternary ammonium salt like tetrabutylammonium iodide, is described. The glycosidation reactions of 4-pentenyl orthoesters (NPOEs) with different alcohols are also discussed. The work described in this paper showed that [bmim]PF6 is an efficient and recyclable solvent for the synthesis and glycosidation reaction of orthoesters.

  描述了一种在离子液体[bmim]PF6中合成糖类1,2-邻醚的简便方法，无需使用四丁基氨铵盐如碘化四丁基铵。还讨论了4-戊烯基邻醚（NPOEs）与不同醇的糖苷化反应。本文所述的工作表明，[bmim]PF6是一种高效且可回收的溶剂，用于邻醚的合成和糖苷化反应。
• Synthesis and Hemolytic Activity of Some Hederagenin Diglycosides
  作者：Martin Chwalek、Karen Plé、Laurence Voutquenne-Nazabadioko

  DOI：10.1248/cpb.52.965

  日期：——

  Glycosylation of hederagenin with the trichloroacetimidate derivatives of six commercial disaccharides (D-cellobiose, D-lactose, D-maltose, D-melibiose, D-gentiobiose, D-isomaltose) was performed giving the protected saponins in high yields. Deprotection then gave the saponins which were transformed into the corresponding methyl esters. The hemolytic activity of these synthetic hederagenin diglycosides was measured in order to establish structure–activity relationships based on the type and sequence of the attached sugar for the free carboxylic acid and methyl ester saponins.

  使用六种商业化双糖（D-细胞二糖、D-乳糖、D-麦芽糖、D-梅里糖、D-金雀异二糖、D-异麦芽糖）的三氯乙酰胺衍生物对苦木苷进行糖苷化反应，得到了高产率的保护皂苷。去保护后得到的皂苷进一步转化为相应的甲基酯。这些合成的苦木苷双糖的溶血活性被测量，以根据附加糖的类型和序列建立游离羧酸和甲基酯皂苷的结构–活性关系。