ethyl 3-O-benzyl-1-thio-β-D-glucopyranoside | 884844-03-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: ethyl 3-O-benzyl-1-thio-β-D-glucopyranoside
• 英文别名: ethylthio 3-O-benzyl-β-D-glucopyranoside；Ethyl 3-O-benzyl-1-thio-beta-D-glucopyranoside；(2S,3R,4S,5R,6R)-2-ethylsulfanyl-6-(hydroxymethyl)-4-phenylmethoxyoxane-3,5-diol
• CAS: 884844-03-5
• 化学式: C₁₅H₂₂O₅S
• 分子量: 314.403
• InChiKey: QZYDYKUQPIMRSF-ZSAUSMIDSA-N

物化性质

• 熔点：
  100-102 °C(Solv: isopropanol (67-63-0); ligroine (8032-32-4))
• 沸点：
  529.2±50.0 °C(Predicted)
• 密度：
  1.30±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  21
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  104
• 氢给体数：
  3
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  ethyl 3-O-benzyl-1-thio-β-D-glucopyranoside 在 吡啶 、 zinc(II) chloride 作用下， 反应 4.0h， 生成 ethyl 2-O-benzoyl-3-O-benzyl-4,6-O-benzylidene-1-thio-β-D-glucopyranoside
  参考文献：
  名称：

  Synthetic studies toward pyruvate acetal containing saccharides. Synthesis of the carbohydrate part of the Mycobacterium smegmatis pentasaccharide glycolipid and fragments thereof for the preparation of neoantigens

  摘要：

  A series of 2,3-di-O-benzoyl-4,6-O-[(S)-1-(methoxycarbonyl)ethylidene]-D-glucopyranosyl donors (beta-phenylthio 3, bromide 4, alpha-chloride 5, beta-fluoride 6, and trichloroacetimidate 7) were prepared from the corresponding alpha-allyl glucoside 1 via the deallylated glucose 2 and were tested in glycosylation reactions with methanol to give the pyruvylated methyl glucosides 8 and 9 and with methyl 2,4,6-tri-O-benzoyl-beta-D-glucopyranoside 10 to give the disaccharide 11. Best results with respect to yield and beta-selectivity of the coupling were achieved with imidate 7. Thus, the 2-O-benzoyl-4,6-O-[(S)-1-(methoxycarbonyl)ethylidene]-3-O-methyl-D-glucopyranosyl trichloroacetimidate 14 was prepared from its benzyl glucoside 12 and used for the synthesis of fragments related to the Mycobacterium smegmatis lipopentasaccharide. Trimethylsilyl trifluoromethanesulfonate-mediated condensation of 14, 5-[(benzyloxycarbonyl)amino]pentanol, and 10, respectively, followed by deblocking of the products 15 and 17 gave the pyruvylated aminopentyl glucoside 16 and methyl laminaribioside 18. Treatment of 17 with dichloromethyl methyl ether gave the laminaribiosyl chloride 19, coupling of which with protected 5-aminopentanol gave 20 also obtained from 14 and the monosaccharide nucleophile 26. The trisaccharide 5-aminopentyl glycoside fragment 42 was prepared by first coupling of 14 and benzyl 2-O-benzoyl-4,6-O-[(S)-1-(methoxycarbonyl)ethylidene]-alpha-D-glucopyranoside 30 that was converted to the bispyruvylated laminaribiose imidate 33, followed by condensation with thioglycoside 38 obtainable in four steps from 1,2,4,6-tetra-O-acetyl-3-O-benzyl-beta-D-glucopyranose to give the trisaccharide ethyl thioglycoside 40. Next, NIS-mediated condensation of 40 and 5-[(benzyloxycarbonyl)amino]pentanol followed by deblocking gave 42. Pentasaccharide 45 was similarly prepared from 40 and hepta-O-benzoyltrehalose 43 to give first the blocked saccharide 44, deblocking of which afforded the target pentasaccharide.

  DOI：

  10.1021/jo00057a021
• 作为产物：
  描述：

  1,2,4,6-四-o-乙酰基-3-o-苄基-beta-d-吡喃葡萄糖 在 三氟甲磺酸三甲基硅酯 、 4 A molecular sieve 、 sodium methylate 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 146.0h， 生成 ethyl 3-O-benzyl-1-thio-β-D-glucopyranoside
  参考文献：
  名称：

  Ethyl 2-Azido-2-deoxy-1-thio-β-d-mannopyranosides 的制备及其重排为 2-S-Ethyl-2-thio-β-d-mannopyranosylamines

  摘要：

  乙基 2-azido-2-deoxy-1-thio-β-D-mannopyranosides 7-11 的合成，从具有葡萄糖构型的适当合成子开始，通过 C(2) 处的 SN 2 取代，并将它们重排为 2-S介绍了-乙基-2-硫代-β-D-吡喃甘露糖胺 12-14。

  DOI：

  10.1055/s-2006-926297

文献信息

• Concise synthesis of a new triterpenoid saponin from the roots of Gypsophila oldhamiana and its derivatives as α-glucosidase inhibitors
  作者：Qingchao Liu、Tiantian Guo、Fahui Li、Dong Li

  DOI：10.1039/c6nj01602b

  日期：——

  The first synthesis of the triterpenoid saponin 1 and its derivatives 2–3 was efficiently achieved in an efficient and practical strategy with an odourless 2-methyl-5-tert-butylphenyl (Mbp) thioglycoside and a N-phenyltrifluoroacetimidate donor as a key step, and their inhibitory activities against α-glucosidase and α-amylase were evaluated in vitro. The preliminary structure–activity relationship

  以无味的2-甲基-5-叔丁基苯基（Mbp）硫代糖苷和N-苯基三氟乙酰亚氨酸酯供体为关键步骤，有效而有效地实现了三萜皂苷1及其衍生物2-3的首次合成，和它们对α葡糖苷酶和α淀粉酶抑制活性进行评价体外。初步的结构-活性关系研究表明，C4-CHO和C4-CH 2 OH对α-葡萄糖苷酶抑制活性不是必需的。在这三种化合物中，化合物3表现出对α-葡萄糖苷酶的显着抑制活性，IC 50为值为9.17μM。根据Dixon图上的截距确定为9.35μM的K i，抗α-葡萄糖苷酶的更强皂苷3可能是非竞争性抑制模式。同时，计算化合物1-3的亲脂性，作为药理效力的预测。根据预测的log  P值，亲脂性可能与评估的生物学潜能相关。
• Multi-Gram Synthesis of a Hyaluronic Acid Subunit and Synthesis of Fully Protected Oligomers
  作者：Mickaël Virlouvet、Michael Gartner、Katarzyna Koroniak、Jonathan P. Sleeman、Stefan Bräse

  DOI：10.1002/adsc.201000008

  日期：2010.10.4

  Fully protected tetra-, hexa- and octasaccharides of hyaluronic acid were synthesized on a scale of several 100 mg up to gram quantities using allyl (methyl 2-O-benzoyl-3-O-benzyl-4-O-levulinoyl-β-D-glucopyranosyluronate)-(13)-4-O-acetyl-6-O-benzyl-2-deoxy-2-trichloroacetamido-β-D-glucopyranoside as a key building block. This disaccharide was subjected to deprotection, then glycosylation via the trichloroacetimidate

  使用烯丙基（甲基2 - O-苯甲酰基-3 - O-苄基-4 - O-乙酰丙酰基-β - D）以几百毫克至几克的量合成透明质酸的完全保护的四糖，六糖和八糖-glucopyranosyluronate） - （13）-4- ø -乙酰基-6- ø -苄基-2-脱氧-2- trichloroacetamido- β -D-吡喃葡萄糖苷作为关键构建块。对该二糖进行脱保护，然后通过三氯乙酰亚胺酸酯方法进行糖基化以形成寡糖。
• A 2,4-O-[(Z)-2-butenylene]-bridged glucopyranose: efficient construction of the bicyclic skeleton and its axial-rich twist-boat conformation
  作者：Yang Cao、Yusuke Kasai、Masafumi Bando、Mayumi Kawagoe、Hidetoshi Yamada

  DOI：10.1016/j.tet.2009.01.019

  日期：2009.3

  Synthesis and conformational analyses of 1-O-acetyl-3,6-di-O-benzyl-2,4-O-[(Z)-2-butenylene]-β-d-glucopyranose are described. The construction of the trioxabicyclo[6.3.1]dodecane skeleton of the compound was initiated from a ring-opened glucose, followed by the successive cyclization of first the nine-membered ring and then the six-membered ring. The pyranose of the compound was in 3S1, an axial-rich

  描述了1 - O-乙酰基-3，6-二-O-苄基-2，4- O -[（Z）-2-丁烯基]-β-d-吡喃葡萄糖的合成和构象分析。该化合物的三氧杂双环[6.3.1]十二烷骨架的构建是从开环的葡萄糖开始的，随后是先将九元环然后是六元环连续环化。该化合物的吡喃糖为3 S 1，一种富含轴向的扭转舟构象。该结果证明了与使用庞大的甲硅烷基保护基团的方法相比，用于将吡喃糖限制成富含轴向的扭转舟构象的替代方法。
• Synthesis of glycosaminoglycan oligosaccharides. Part 5: Synthesis of a putative heparan sulfate tetrasaccharide antigen involved in prion diseases
  作者：Katalin Daragics、Péter Fügedi

  DOI：10.1016/j.tet.2010.08.004

  日期：2010.10

  The synthesis of the putative prion-associated heparan sulfate tetrasaccharide containing two d-glucuronic acid units is reported. Key to the synthesis were the differentiation of the N-acetylated and N-unsubstituted glucosamine units, the high-yielding glucosylation at O-4 of an N-acetyl-d-glucosamine derivative and the α-selective glycosylation of the 4′-OH group of a β-d-GlcpA-(1→4)-d-GlcpNAc disaccharide

  报道了推定的含有两个d-葡萄糖醛酸单元的病毒相关的硫酸乙酰肝素四糖的合成。键合成为所述的分化Ñ -acetylated和ñ -未被取代的葡糖胺单元，在的O-4的高产葡糖Ñ乙酰基d -葡糖胺衍生物和的α选择性糖基化的4'-OH组具有双糖硫糖苷供体的β- d- Glc p A-（1→4）-d -Glc p NAc双糖结构单元。
• Synthetic studies toward pyruvate acetal containing saccharides. Synthesis of the carbohydrate part of the Mycobacterium smegmatis pentasaccharide glycolipid and fragments thereof for the preparation of neoantigens
  作者：Thomas Ziegler、Elisabeth Eckhardt、Veronique Birault

  DOI：10.1021/jo00057a021

  日期：1993.2

  A series of 2,3-di-O-benzoyl-4,6-O-[(S)-1-(methoxycarbonyl)ethylidene]-D-glucopyranosyl donors (beta-phenylthio 3, bromide 4, alpha-chloride 5, beta-fluoride 6, and trichloroacetimidate 7) were prepared from the corresponding alpha-allyl glucoside 1 via the deallylated glucose 2 and were tested in glycosylation reactions with methanol to give the pyruvylated methyl glucosides 8 and 9 and with methyl 2,4,6-tri-O-benzoyl-beta-D-glucopyranoside 10 to give the disaccharide 11. Best results with respect to yield and beta-selectivity of the coupling were achieved with imidate 7. Thus, the 2-O-benzoyl-4,6-O-[(S)-1-(methoxycarbonyl)ethylidene]-3-O-methyl-D-glucopyranosyl trichloroacetimidate 14 was prepared from its benzyl glucoside 12 and used for the synthesis of fragments related to the Mycobacterium smegmatis lipopentasaccharide. Trimethylsilyl trifluoromethanesulfonate-mediated condensation of 14, 5-[(benzyloxycarbonyl)amino]pentanol, and 10, respectively, followed by deblocking of the products 15 and 17 gave the pyruvylated aminopentyl glucoside 16 and methyl laminaribioside 18. Treatment of 17 with dichloromethyl methyl ether gave the laminaribiosyl chloride 19, coupling of which with protected 5-aminopentanol gave 20 also obtained from 14 and the monosaccharide nucleophile 26. The trisaccharide 5-aminopentyl glycoside fragment 42 was prepared by first coupling of 14 and benzyl 2-O-benzoyl-4,6-O-[(S)-1-(methoxycarbonyl)ethylidene]-alpha-D-glucopyranoside 30 that was converted to the bispyruvylated laminaribiose imidate 33, followed by condensation with thioglycoside 38 obtainable in four steps from 1,2,4,6-tetra-O-acetyl-3-O-benzyl-beta-D-glucopyranose to give the trisaccharide ethyl thioglycoside 40. Next, NIS-mediated condensation of 40 and 5-[(benzyloxycarbonyl)amino]pentanol followed by deblocking gave 42. Pentasaccharide 45 was similarly prepared from 40 and hepta-O-benzoyltrehalose 43 to give first the blocked saccharide 44, deblocking of which afforded the target pentasaccharide.