tert-butyl 3,4,6-tri-O-acetyl-2-deoxy-D-galactopyranoside | 69247-29-6

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: tert-butyl 3,4,6-tri-O-acetyl-2-deoxy-D-galactopyranoside
• 英文别名: tert-butyl 3,4,6-tri-O-acetyl-2-deoxy-D-galactcopyranoside；[(2R,3R,4R,6R)-3,4-diacetyloxy-6-[(2-methylpropan-2-yl)oxy]oxan-2-yl]methyl acetate
• CAS: 69247-29-6
• 化学式: C₁₆H₂₆O₈
• 分子量: 346.378
• InChiKey: XZFDFANOIVWMJG-KBUPBQIOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  24
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.81
• 拓扑面积：
  97.4
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为产物：
  描述：

  beta-D-半乳糖五乙酸酯 在 三甲基溴硅烷 、 氢溴酸 、 溶剂黄146 、 三苯基氧化膦 作用下， 以 二氯甲烷 为溶剂， -15.0~20.0 ℃ 、101.33 kPa 条件下， 反应 4.0h， 生成 tert-butyl 3,4,6-tri-O-acetyl-2-deoxy-D-galactopyranoside 、 tert-butyl 3,4,6-tri-O-acetyl-2-deoxy-D-galactopyranoside
  参考文献：
  名称：

  TMSBr-mediated solvent- and work-up-free synthesis of α-2-deoxyglycosides from glycals

  摘要：

  甘露糖醛酸盐的硫加成反应可以在无溶剂条件下高效地通过等物量的溴化三甲基硅(TMSBr)催化产生良好至优异收率的S-2-脱氧糖苷。此外，加入三苯基膦氧化物作为添加剂，TMSBr介导的甘露糖醛酸盐与多种醇类的直接糖基化反应具有高度α-选择性。

  DOI：

  10.3762/bjoc.12.164

文献信息

• Nitrosyl Tetrafluoroborate Catalyzed Preparation of 2,3-Unsaturated Glycosides and 2-Deoxyglycosides of Hindered Alcohols, Thiols, and Sulfonamides
  作者：Anup Misra、Abhishek Santra、Goutam Guchhait

  DOI：10.1055/s-0032-1318406

  日期：——

  Nitrosyl tetrafluoroborate (NOBF4) has been successfully applied as an efficient organocatalyst for the preparation of 2,3-unsaturated and 2-deoxyglycosides of hindered alcohols, aryl thiols, and aryl sulfonamides from glycal derivatives under the Ferrier rearrangement conditions. Product yields and stereo-outcomes were very good.

  四氟硼酸亚硝基酯 (NOBF4) 已成功用作有效的有机催化剂，用于在费里尔重排条件下由糖基衍生物制备受阻醇、芳基硫醇和芳基磺酰胺的 2,3-不饱和和 2-脱氧糖苷。产品产量和立体效果非常好。
• Perfluorophenylboronic acid-catalyzed direct α-stereoselective synthesis of 2-deoxygalactosides from deactivated peracetylated <scp>d</scp>-galactal
  作者：Madhu Babu Tatina、Ziad Moussa、Mengxin Xia、Zaher M. A. Judeh

  DOI：10.1039/c9cc06151g

  日期：——

  Perfluorophenylboronic acid 1c catalyzes the direct stereoselective addition of alcohol nucleophiles to deactivated peracetylated d-galactal to give 2-deoxygalactosides in 55-88% yield with complete α-selectivity. The unprecedented results reported here also enable the synthesis of disaccharides containing the 2-deoxygalactose moiety directly from the deactivated peracetylated d-galactal. This convenient and metal-free

  全氟苯基硼酸1c催化将醇亲核试剂直接立体选择性加成到失活的过乙酰化d-半乳糖上，以55-8％的收率得到2-deoxygalactosides，具有完全的α-选择性。这里报道的空前的结果还使得能够直接从失活的过乙酰化的d-半乳糖合成包含2-脱氧半乳糖部分的二糖。这种方便且无金属的糖基化方法可与多种醇亲核试剂作为受体配合使用，并能耐受多种官能团，而不会形成Ferrier副产物，也无需大量过量的亲核试剂或添加剂。该方法对于合成多种α-2-脱氧半乳糖苷可能是有用的。
• Glycosyl hydroperoxides: A new class of potential antimalarial agents
  作者：Barbara Szechner、Anna Jaromin、Silvia Parapini、Nicoletta Basilico、Barbara Grzeszczyk、Bartłomiej Furman、Marek Chmielewski

  DOI：10.1016/j.bmc.2015.05.009

  日期：2015.7

  Motivated by the antimalarial properties observed in organic peroxides, an extensive series of glycosyl hydroperoxides was prepared with the aim of identifying new bioactive molecules. Selected compounds were tested against a Plasmodium falciparum culture (chloroquine-susceptible strain D10 and chloroquine-resistant strain W2). Screening results indicated that the factors critical for antimalarial activity were the presence of a hydroperoxide moiety and solubility in water at pH 5.0. Moreover, the ability to inhibit beta-hematin formation in vitro has been evaluated (BHIA Assay). (C) 2015 Elsevier Ltd. All rights reserved.