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p-methylphenyl 2,3,4-tri-O-benzoyl-1-thio-β-galactopyranoside | 220645-11-4

中文名称
——
中文别名
——
英文名称
p-methylphenyl 2,3,4-tri-O-benzoyl-1-thio-β-galactopyranoside
英文别名
p-tolyl 2,3,4-tri-O-benzoyl-1-thio-β-D-galactopyranoside;tolyl 2,3,4-tri-O-benzoyl-1-thio-β-D-galactopyranoside;[(2R,3S,4S,5R,6S)-4,5-dibenzoyloxy-2-(hydroxymethyl)-6-(4-methylphenyl)sulfanyloxan-3-yl] benzoate
p-methylphenyl 2,3,4-tri-O-benzoyl-1-thio-β-galactopyranoside化学式
CAS
220645-11-4
化学式
C34H30O8S
mdl
——
分子量
598.673
InChiKey
VGOJOKPAEVYVKR-BBQPZQQSSA-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):
    6.8
  • 重原子数:
    43
  • 可旋转键数:
    12
  • 环数:
    5.0
  • sp3杂化的碳原子比例:
    0.21
  • 拓扑面积:
    134
  • 氢给体数:
    1
  • 氢受体数:
    9

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
  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    p-methylphenyl 2,3,4-tri-O-benzoyl-1-thio-β-galactopyranoside 、 silver fluoride 作用下, 以 吡啶 为溶剂, 反应 0.33h, 以32%的产率得到p-methylphenyl 2,4,6-tri-O-benzoyl-1-thio-β-galactopyranoside
    参考文献:
    名称:
    Programmable One-Pot Oligosaccharide Synthesis
    摘要:
    In an effort to develop a broadly applicable approach to the facile one-pot synthesis of oligosaccharides, the reactivity of a number of p-methylphenyl thioglycoside (STol) donors which are either fully protected or have one hydroxyl group exposed has been quantitatively determined by HPLC. We have characterized and quantified the influence on reactivity of the structural effects of different monosaccharide cores and different protecting groups on each glycoside donor. In addition, we have established a correlation between glycosyl donor reactivity and the chemical shift of the anomeric proton by H-1 NMR. Using the reactivity data, we have created a database of thioglycosides as glycosyl donors and demonstrated its utility in the easy and rapid one-pot assembly of various linear and branched oligosaccharide structures. In addition, we have developed the first computer program, OptiMer, for use as a database search tool and guide for the selection of building blocks for the one-pot assembly of a desired oligosaccharide or a library of individual oligosaccharides.
    DOI:
    10.1021/ja982232s
  • 作为产物:
    描述:
    p-tolyl 2,3,4-tri-O-benzoyl-6-O-tert-butyl-diphenylsilyl-1-thio-β-D-galactopyranoside 在 1,3-二溴-5,5-二甲基海因 作用下, 以 二甲基亚砜 为溶剂, 反应 0.5h, 以83%的产率得到p-methylphenyl 2,3,4-tri-O-benzoyl-1-thio-β-galactopyranoside
    参考文献:
    名称:
    1,3-二溴-5,5-二甲基乙内酰脲催化裂解叔丁基二苯基甲硅烷基醚的有效方法
    摘要:
    摘要 建立了以1,3-二溴-5,5-二甲基乙内酰脲(DBH)为催化剂、二甲基亚砜(DMSO)为溶剂的叔丁基二苯基甲硅烷基(TBDPS)醚脱保护的有效方法。该方法适用于多种化合物,例如碳水化合物、类固醇、苯甲醇和脂肪伯醇。带有乙酸盐、苯甲酸盐、新戊酸盐、甲磺酸盐和苄基醚和对甲氧基苄基醚的底物是相容的。
    DOI:
    10.1080/07328303.2022.2031206
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文献信息

  • One-pot synthesis of cyclic oligosaccharides by the polyglycosylation of monothioglycosides
    作者:Hidehisa Someya、Takehito Seki、Gota Ishigami、Taiki Itoh、Yutaka Saga、Yasuyuki Yamada、Shin Aoki
    DOI:10.1016/j.carres.2019.107888
    日期:2020.1
    polyglycosylation of monothioglycosides, typically, 2,3,4-protected 1-thioglycosides. A series of promoters and solvents were tested for the glycosylation of thiogalactosides that contain a hydroxy group at the 6-position, and glycosylation using a N-iodosuccinimide (NIS)/trimethylsilyl triflate (TMSOTf) promoter system in dichloromethane afforded cyclic oligosaccharides which consist of tri~penta galactosides
    环状低聚糖(例如环糊精(CyDs))已被公认为是包含各种有机客体分子的出色宿主分子。由于目前传统的合成路线包括多个反应步骤(糖基化反应和脱保护),因此非常需要开发一种从简单易得的糖基供体制备环状寡糖的新合成方法。我们在本文中报道了通过单硫代糖苷,通常为2,3,4-保护的1-硫代糖苷的多糖基化来合成环状寡糖。测试了一系列促进剂和溶剂的巯基半乳糖苷的糖基化,该巯基半乳糖苷在6位上含有羟基,并使用N-碘代琥珀酰亚胺(NIS)/三甲基三氟甲磺酸三甲基甲磺酸酯(TMSOTf)启动子系统在二氯甲烷中进行糖基化反应,得到环状寡糖,其由含有重复的β-(1→6)糖苷键的三戊半乳糖苷为主要产物,如单次试验所证明的那样环状四半乳糖苷的晶体X射线结构分析。还研究了反应温度和反应物浓度对糖基化产物的影响。通过硫代葡糖苷的糖基化获得环状葡糖苷。此外,除去合成的环状四半乳糖苷的保护基,以获得脱保护的环状四半乳糖苷。如环
  • Electrophilic Fluorination−Nucleophilic Addition Reaction Mediated by Selectfluor: Mechanistic Studies and New Applications
    作者:Stéphane P. Vincent、Michael D. Burkart、Chung-Ying Tsai、Zhiyuan Zhang、Chi-Huey Wong
    DOI:10.1021/jo990686h
    日期:1999.7.1
    The electrophilic fluorination-nucleophilic addition reaction with Selectfluor-type reagents upon glycals has been studied and optimized. This reaction leads to selective fluorination at the 2-position with concomitant nucleophilic addition to the anomeric center. To understand the stereochemical outcome of this process, a mechanistic study has led to the discovery that, in the fucose series, Selectfluor
    已经研究和优化了与 Selectfluor 型试剂在糖基上的亲电氟化-亲核加成反应。该反应导致在 2 位选择性氟化,同时对异头中心进行亲核加成。为了了解该过程的立体化学结果,一项机制研究发现,在岩藻糖系列中,Selectfluor 以顺式方式特异性添加,产生 1-[TEDA-CH2Cl]-2-氟糖,该糖缓慢异构化为更稳定的中间体。研究了异头α/β分布作为反应物和条件的函数,发现保护基策略的明智选择可以提高氟化和亲核加成的立体选择性。此外,使用超敏自由基探针来探测反应,并且没有分离出自由基过程的产物特征,这表明在聚糖对 Selectfluor 的攻击期间没有发生单电子转移。还讨论了溶剂效应、Selectfluor 反离子和逐步程序的重要性。这项研究带来了产量的重要改进和更广泛的允许亲核试剂,如碳水化合物、氨基酸、磷酸盐或膦酸盐的仲醇。这一优化过程进一步应用于重要生物活性分子的修饰,包括氟化道
  • An efficient approach for total synthesis of aminopropyl functionalized ganglioside GM1b
    作者:Bin Sun、Heyan Jiang
    DOI:10.1016/j.tetlet.2012.08.077
    日期:2012.10
    A highly efficient protocol for the synthesis of aminopropyl functionalized ganglioside GM1b has been described. The full protected ganglioside GM1b was obtained in 71% yield within 5 h. The key feature of the synthetic approach was the use of sialic acid donor that was with a C-5 trichloroacetamide moiety and with a dibenzyl phosphite residue as leaving group at the anomeric carbon. The sialyl donor
    已经描述了用于合成氨丙基官能化神经节苷脂GM1b的高效方案。在5小时内以71%的产率获得了完全保护的神经节苷脂GM1b。合成方法的关键特征是使用唾液酸供体,其具有C-5三氯乙酰胺部分和亚磷酸二苄酯残基作为异头碳上的离去基团。通过在乙腈和乙腈的混合溶液中使用TMSOTf作为催化剂,唾液酸供体可提供高收率和出色的α-端异构选择性,具有多种糖基受体,范围从半乳糖苷的C-3或C-6羟基到葡糖氨基糖苷的C-6羟基。二氯甲烷。
  • Pre-Activation-Based One-Pot Synthesis of an α-(2,3)-Sialylated Core-Fucosylated Complex Type Bi-Antennary N-Glycan Dodecasaccharide
    作者:Bin Sun、Balasubramanian Srinivasan、Xuefei Huang
    DOI:10.1002/chem.200800757
    日期:2008.8.8
    Synthesis of N-glycans is of high current interests due to their important biological properties. A highly efficient convergent strategy based on the pre-activation method for assembly of the complex type core fucosylated bi-antennary N-glycan dodecasaccharide has been developed. Retrosynthetically, this extremely challenging target is broken down to three modules: a sialyl disaccharide, a glucosamine
    N-聚糖的合成由于其重要的生物学特性而引起了当前的高度关注。开发了一种基于预激活方法的高效收敛策略,用于组装复合型核心岩藻糖基化双触角N-聚糖十二糖。通过逆合成,这个极具挑战性的目标被分解为三个模块:唾液酸二糖、葡萄糖胺结构单元和六糖二醇受体。在硫代半乳糖苷受体存在下,通过选择性激活新的 5-N-三氯乙酰基保护的唾液酸供体,可以轻松获得唾液酸二糖。六糖二醇模块是通过岩藻糖基化四糖受体的双甘露糖基化产生的,而岩藻糖基化四糖受体又是通过α-岩藻糖基化二糖与含有β-甘露糖的二糖供体的糖基化产生的。三个模块的结合在一锅中进行,以高产率得到完全保护的十二糖。该合成的特点是对寡糖中间体进行最少的保护基团和苷元调整,从而大大提高了整体合成效率。该策略的模块化特征表明该方法可以很容易地适应多种 N-聚糖结构的合成。
  • Fluorous-Assisted One-Pot Oligosaccharide Synthesis
    作者:Bo Yang、Yuqing Jing、Xuefei Huang
    DOI:10.1002/ejoc.200901155
    日期:2010.3
    A new method for oligosaccharide assembly that combines the advantages of one-pot synthesis and fluorous separation is described. After one-pot glycosylations are completed, a fluorous tag is introduced into the reaction mixture to selectively "catch" the desired oligosaccharide, which is rapidly separated from non-fluorous impurities by fluorous solid-phase extraction (F-SPE). Subsequent "release"
    描述了一种结合了一锅法合成和氟分离优势的寡糖组装新方法。一锅糖基化完成后,将氟标签引入反应混合物中,以选择性地“捕获”所需的寡糖,该寡糖可通过氟固相萃取(F-SPE)与非氟杂质快速分离。氟标签和F-SPE的随后“释放”无需使用费时和溶剂的硅胶色谱即可实现所需寡糖的纯化。线性和支链低聚糖已通过这种方法在短短几个小时内合成(用于整个低聚糖的组装和纯化过程)。
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