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methyl 2,3,6-tri-O-benzyl-4-O-(3,4,6-tri-O-benzyl-2-deoxy-α-D-glucopyranosyl)-α-D-glucopyranoside

中文名称
——
中文别名
——
英文名称
methyl 2,3,6-tri-O-benzyl-4-O-(3,4,6-tri-O-benzyl-2-deoxy-α-D-glucopyranosyl)-α-D-glucopyranoside
英文别名
methyl 4-O-(3,4,6-tri-O-benzyl-2-deoxy-α-D-glucopyranosyl)-2,3,6-tri-O-benzyl-α-D-glucopyranoside;methyl (3,4,6-tri-O-benzyl-2-deoxy-α-D-glucopyranosyl)-(1→4)-2,3,6-tetra-O-benzyl-α-D-glucopyranoside;Bn(-3)[Bn(-4)][Bn(-6)]2-deoxy-D-araHex(a1-4)[Bn(-2)][Bn(-3)][Bn(-6)]a-Glc1Me;(2S,3R,4S,5R,6R)-5-[(2R,4R,5S,6R)-4,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]oxy-2-methoxy-3,4-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxane
methyl 2,3,6-tri-O-benzyl-4-O-(3,4,6-tri-O-benzyl-2-deoxy-α-D-glucopyranosyl)-α-D-glucopyranoside化学式
CAS
——
化学式
C55H60O10
mdl
——
分子量
881.075
InChiKey
VYUQIENSEWOIHZ-XZRFZYPZSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    8.4
  • 重原子数:
    65
  • 可旋转键数:
    23
  • 环数:
    8.0
  • sp3杂化的碳原子比例:
    0.35
  • 拓扑面积:
    92.3
  • 氢给体数:
    0
  • 氢受体数:
    10

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

点击查看最新优质反应信息

文献信息

  • TMSBr-mediated solvent- and work-up-free synthesis of α-2-deoxyglycosides from glycals
    作者:Mei-Yuan Hsu、Yi-Pei Liu、Sarah Lam、Su-Ching Lin、Cheng-Chung Wang
    DOI:10.3762/bjoc.12.164
    日期:——

    The thio-additions of glycals were efficiently promoted by a stoichiometric amount of trimethylsilyl bromide (TMSBr) to produce S-2-deoxyglycosides under solvent-free conditions in good to excellent yields. In addition, with triphenylphosphine oxide as an additive, the TMSBr-mediated direct glycosylations of glycals with a large range of alcohols were highly α-selective.

    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。
  • Automated Quantification of Hydroxyl Reactivities: Prediction of Glycosylation Reactions
    作者:Chun‐Wei Chang、Mei‐Huei Lin、Chieh‐Kai Chan、Kuan‐Yu Su、Chia‐Hui Wu、Wei‐Chih Lo、Sarah Lam、Yu‐Ting Cheng、Pin‐Hsuan Liao、Chi‐Huey Wong、Cheng‐Chung Wang
    DOI:10.1002/anie.202013909
    日期:2021.5.25
    (Aka) to quantify the nucleophilicity of hydroxyl groups in glycosylation influenced by the steric, electronic and structural effects, providing a connection between experiments and computer algorithms. The subtle reactivity differences among the hydroxyl groups on various carbohydrate molecules can be defined by Aka, which is easily accessible by a simple and convenient automation system to assure
    糖基化反应的立体选择性和产率至关重要,但不可预测。我们已经开发了一个亲核亲核常数(Aka)数据库,用于量化受空间,电子和结构效应影响的糖基化中羟基的亲核性,从而在实验和计算机算法之间建立联系。各种碳水化合物分子上的羟基之间的细微反应性差异可以由Aka定义,Aka可以通过简单便捷的自动化系统轻松访问,以确保高重现性和准确性。通过设计的软件程序“ GlycoComputer”可以组织和处理各种具有明确反应性和启动子的糖基化供体和受体,从而无需复杂的计算过程即可预测糖基化反应。通过随机森林算法进一步验证了Aka的重要性,并通过合成Lewis A骨架测试了适用性,表明可以准确估计立体选择性和产率。
  • Establishment of Guidelines for the Control of Glycosylation Reactions and Intermediates by Quantitative Assessment of Reactivity
    作者:Chun‐Wei Chang、Chia‐Hui Wu、Mei‐Huei Lin、Pin‐Hsuan Liao、Chun‐Chi Chang、Hsiao‐Han Chuang、Su‐Ching Lin、Sarah Lam、Ved Prakash Verma、Chao‐Ping Hsu、Cheng‐Chung Wang
    DOI:10.1002/anie.201906297
    日期:2019.11.18
    Stereocontrolled chemical glycosylation remains a major challenge despite vast efforts reported over many decades and so far still mainly relies on trial and error. Now it is shown that the relative reactivity value (RRV) of thioglycosides is an indicator for revealing stereoselectivities according to four types of acceptors. Mechanistic studies show that the reaction is dominated by two distinct intermediates:
    尽管数十年来进行了大量的努力,但立体控制的化学糖基化仍然是一个主要挑战,到目前为止,仍然主要依靠反复试验。现在表明,硫糖苷的相对反应性值(RRV)是根据四种受体揭示立体选择性的指标。机理研究表明,该反应由两种不同的中间体控制:糖基三氟甲磺酸酯和来自N-卤代琥珀酰亚胺(NXS)/ TfOH的糖基卤化物。糖基卤化物的形成与α-糖苷的产生高度相关。这些发现使得能够通过使用RRV作为α/β-选择性指示剂来预见糖基化反应,并且为立体控制糖基化开发了指导方针和规则。
  • 4,5-Dioxo-imidazolinium Cation-Promoted α-Selective Dehydrative Glycosylation of 2-Deoxy- and 2,6-Dideoxy Sugars
    作者:Javed、Ashwani Tiwari、Zanjila Azeem、Pintu Kumar Mandal
    DOI:10.1021/acs.joc.1c02650
    日期:2022.3.4
    cation activation strategy for dehydrative glycosylation reactions employing the readily available and economical geminal dichloroimidazolidinediones (DCIDs) that promotes the glycosylation between 2-deoxy- and 2,6-dideoxy-sugar hemiacetals with various acceptors in good yields and high α-selectivity. This research not only provides a mild and efficient alternative approach for stereoselective dehydrative
    在此,我们报告了 4,5-二氧代-咪唑啉阳离子活化策略在脱水糖基化反应中的巨大潜力,该策略采用易于获得且经济的孪生二氯咪唑烷二酮 (DCID),可促进 2-脱氧和 2,6-二脱氧-之间的糖基化。糖半缩醛具有多种受体,产率高,α-选择性高。该研究不仅为立体选择性脱水糖基化提供了一种温和有效的替代方法,而且还扩展了二氯咪唑烷二酮作为糖科学领域的新型促进剂。
  • L‐Proline Derived Thioamide Small Organic Molecule for the α‐Stereoselective Synthesis of 2‐Deoxyglycosides
    作者:Ashwani Tiwari、Ariza Khanam、Ashwani Kumar、Mohan Lal、Pintu Kumar Mandal
    DOI:10.1002/adsc.202300455
    日期:2023.9.5
    catalyzes direct stereoselective glycosylation of glycal donors to access 2-deoxyglycosides under moderate reaction conditions. This proposed glycosylation protocol produced the desired products in up to 88% yield and shows greater tolerance of glycosyl acceptors and a broad substrate scope with better stereoselectivity. This method is also applicable for less nucleophilic acceptors such as phenol.
    L-脯氨酸硫代酰胺在温和的反应条件下催化糖供体的直接立体选择性糖基化以形成 2-脱氧糖苷。该提议的糖基化方案以高达 88% 的产率产生了所需的产物,并显示出更大的糖基受体耐受性和更广泛的底物范围以及更好的立体选择性。该方法也适用于亲核性较低的受体,例如苯酚。此外,还可以通过该方法获得1,1'-连接的海藻糖型类似物。此外,机理研究表明,在这种糖基化中,L-脯氨酸硫酰胺通过布朗斯台德酸/碱催化起作用。
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