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methyl O-(2,3,4-tri-O-benzyl-α-D-glucopyranosyl)-(1->6)-O-(2,3,4-tri-O-benzyl-α-D-glucopyranosyl)-(1->6)-2,3,4-tri-O-benzyl-α-D-glucopyranoside | 53766-63-5

中文名称
——
中文别名
——
英文名称
methyl O-(2,3,4-tri-O-benzyl-α-D-glucopyranosyl)-(1->6)-O-(2,3,4-tri-O-benzyl-α-D-glucopyranosyl)-(1->6)-2,3,4-tri-O-benzyl-α-D-glucopyranoside
英文别名
methyl 2,3,4-tri-O-benzyl-α-D-glucopyranosyl-(1->6)-2,3,4-tri-O-benzyl-α-D-glucopyranosyl-(1->6)-2,3,4-tri-O-benzyl-α-D-glucopyranoside;Bn(-2)[Bn(-3)][Bn(-4)]Glc(a1-6)[Bn(-2)][Bn(-3)][Bn(-4)]Glc(a1-6)[Bn(-2)][Bn(-3)][Bn(-4)]a-Glc1Me;[(2R,3R,4S,5R,6S)-6-[[(2R,3R,4S,5R,6S)-6-[[(2R,3R,4S,5R,6S)-6-methoxy-3,4,5-tris(phenylmethoxy)oxan-2-yl]methoxy]-3,4,5-tris(phenylmethoxy)oxan-2-yl]methoxy]-3,4,5-tris(phenylmethoxy)oxan-2-yl]methanol
methyl O-(2,3,4-tri-O-benzyl-α-D-glucopyranosyl)-(1->6)-O-(2,3,4-tri-O-benzyl-α-D-glucopyranosyl)-(1->6)-2,3,4-tri-O-benzyl-α-D-glucopyranoside化学式
CAS
53766-63-5
化学式
C82H88O16
mdl
——
分子量
1329.59
InChiKey
QJRAUSSHWHYADI-GTJZGWDHSA-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):
    11.4
  • 重原子数:
    98
  • 可旋转键数:
    35
  • 环数:
    12.0
  • sp3杂化的碳原子比例:
    0.34
  • 拓扑面积:
    159
  • 氢给体数:
    1
  • 氢受体数:
    16

上下游信息

  • 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:
    methyl O-(2,3,4-tri-O-benzyl-α-D-glucopyranosyl)-(1->6)-O-(2,3,4-tri-O-benzyl-α-D-glucopyranosyl)-(1->6)-2,3,4-tri-O-benzyl-α-D-glucopyranoside 在 palladium on activated charcoal 氢气 作用下, 以 乙二醇甲醚 为溶剂, 反应 3.0h, 以85%的产率得到methyl O-α-D-glucopyranosyl-(1->6)-O-α-D-glucopyranosyl)-(1->6)-α-D-glucopyranoside
    参考文献:
    名称:
    异麦芽寡糖和相关化合物的甲基α-糖苷的系统化学合成和nmr光谱。
    摘要:
    1,6-脱水-2,3,4-三-O-苄基-β-D-吡喃葡萄糖的酸催化硫酚氧化反应和所得苯基2,3,4-三-O-苄基-1-硫代-苯甲酸乙酰化α-D-吡喃葡萄糖苷(4)得到苯基6-O-乙酰基-2,3,4-三-O-苄基-1-硫代-α-D-吡喃葡萄糖苷(5)。5与氯的反应立体定向产生相应的β-糖基氯,将其在高氯酸银和2,4,6-三甲基吡啶的存在下用4处理,得到苯基O-(6-O-乙酰基-2,3 ,4-三-O-苄基-α-D-吡喃葡萄糖基)-(1-6)-2,3,4-三-O-苄基-1-硫代-α-D-吡喃葡萄糖苷(17)。结晶O-(6-O-乙酰基-2,3,4-三-O-苄基-α-D-吡喃葡萄糖基)-(1 ---- 6)-2,3,4-三-O-苄基- β-D-吡喃葡萄糖基氯,可以通过用氯处理以立体特异性的方式容易地从17中获得,在异麦芽寡糖,直至并包括八糖的甲基糖苷的嵌段合成中,“苯丙氨酸”用作关键糖基(异麦芽糖基)供体。通过使用SnCl2活化的2
    DOI:
    10.1016/0008-6215(88)80008-9
  • 作为产物:
    描述:
    Bn(-2)[Bn(-3)][Bn(-4)]Glc6Ac(a1-6)[Bn(-2)][Bn(-3)][Bn(-4)]Glc(a1-6)[Bn(-2)][Bn(-3)][Bn(-4)]a-Glc1Me 生成 methyl O-(2,3,4-tri-O-benzyl-α-D-glucopyranosyl)-(1->6)-O-(2,3,4-tri-O-benzyl-α-D-glucopyranosyl)-(1->6)-2,3,4-tri-O-benzyl-α-D-glucopyranoside
    参考文献:
    名称:
    KOVAC, PAVOL;LERNER, LAURA, CARBOHYDR. RES., 184,(1988) C. 87-112
    摘要:
    DOI:
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文献信息

  • A “Traceless” Directing Group Enables Catalytic S<sub><i>N</i></sub>2 Glycosylation toward 1,2-<i>cis</i>-Glycopyranosides
    作者:Xu Ma、Zhitong Zheng、Yue Fu、Xijun Zhu、Peng Liu、Liming Zhang
    DOI:10.1021/jacs.1c04584
    日期:2021.8.11
    Generally applicable and stereoselective formation of 1,2-cis-glycopyranosidic linkage remains a long sought after yet unmet goal in carbohydrate chemistry. This work advances a strategy to this challenge via stereoinversion at the anomeric position of 1,2-trans glycosyl ester donors. This SN2 glycosylation is enabled under gold catalysis by an oxazole-based directing group optimally tethered to a
    1,2-顺式-喃糖苷键的普遍适用和立体选择性形成仍然是碳水化合物化学中长期追求但尚未实现的目标。这项工作通过在 1,2-反式糖基酯供体的异头位置上的立体倒置推进了应对这一挑战的策略。这种 S N 2 糖基化是在催化下通过以恶唑为基础的导向基团实现的,该导向基团最佳地束缚在离去基团上,并在温和的催化条件下以大多数优异的产率和良好的选择性实现。该策略也适用于寡糖的合成。
  • Conformational Effects on Glycoside Reactivity:  Study of the High Reactive Conformer of Glucose
    作者:Ciaran McDonnell、Oscar López、Paul Murphy、José G. Fernández Bolaños、Rita Hazell、Mikael Bols
    DOI:10.1021/ja047476t
    日期:2004.10.1
    The effect of conformation on glycoside reactivity was investigated by studying the hydrolysis of a selection of 3,6-anhydroglucosides as models for glucose in the highly reactive (1)C(4) conformation. Methyl 3,6-anhydro-beta-D-glucopyranoside was found to hydrolyze 200-400 times faster than methyl glucosides in the (4)C(1) conformation, while methyl 3,6-anhydro-beta-D-galactopyranoside, which is in
    构象对糖苷反应性的影响通过研究作为高反应性 (1)C(4) 构象中葡萄糖模型的 3,6-脱糖苷的选择的解来研究。发现甲基 3,6-脱-β-D-吡喃葡萄糖苷比 (4)C(1) 构象中的甲基葡萄糖解快 200-400 倍,而甲基 3,6-脱-β-D-喃半乳糖苷,处于 B(1,4) 构象中,反应性低于甲基 β-D-喃半乳糖苷。甲基(3,6-脱-β-D-吡喃葡萄糖基)-(1 --> 6)-α-D-吡喃葡萄糖苷,甲基(3,6-脱-α-D-吡喃葡萄糖基)-(1 --> 6 )-α-D-吡喃葡萄糖基-(1 --> 6)-α-D-吡喃葡萄糖苷和甲基(3,6-脱-β-D-吡喃葡萄糖基)-(1 --> 6)-α-D-吡喃葡萄糖基-(1 --> 6)-α-D-吡喃葡萄糖苷被制备并且发现在脱残基处选择性地反应。糖苷的 (1)C(4) 构象异构体是高活性物种的发现符合并支持先前的结果,表明轴向
  • [EN] A HIGHLY EFFICIENT GLYCOSYLATION CHEMISTRY ENABLED BY A DIRECTING-GROUP THAT IS PART OF THE ANOMERIC LEAVING-GROUP<br/>[FR] CHIMIE DE GLYCOSYLATION HAUTEMENT EFFICACE ACTIVÉE PAR UN GROUPE DIRECTEUR FAISANT PARTIE DU GROUPE PARTANT ANOMÉRIQUE
    申请人:UNIV CALIFORNIA
    公开号:WO2022165224A1
    公开(公告)日:2022-08-04
    Broadly applicable and stereoselective formation of glycosidic linkage remains challenging yet of critical importance in giycoscience. By developing an SN2 glycosylation, this work advances a general solution to this challenge via stereoinversion at the anomeric position of glycosyl ester donors. This SN2 process is enabled by a basic directing-group in the leaving-group, which is activated by a cationic gold catalyst or any other electrophilic reagent. Unlike all the reported directing group approaches, this strategy is applicable to any glycosyl donors - a long sought-after yet unmet goal in carbohydrate chemistry; moreover, the basic directing-group upon glycosylation is lost as part of the leaving-group and hence traceless in the glycoside products, therefore avoiding potential complications in downstream transformations. Highly selective construction of glycosidic bonds including challenging 1,2-cis glycosidic bonds is achieved in excellent yields. The strategy is applied iteratively to access oligosaccharides and can distinguish alcohols with different steric hindrance.
    广泛适用且立体选择性的糖苷键形成仍然具有挑战性,但在糖科学中至关重要。通过开发SN2糖基化,本研究通过糖酯供体的异构反转在糖基位置上推进了对这一挑战的普遍解决方案。此SN2过程由离去基中的碱性定向基启用,该定向基由阳离子催化剂或任何其他亲电试剂激活。与所有报道的定向基方法不同,该策略适用于任何糖基供体-这是糖化学中一直追求但未能达成的目标;此外,糖基化后的碱性定向基将作为离去基的一部分而丢失,并且在糖苷产物中没有痕迹,因此避免了下游转化中的潜在复杂性。高度选择性的糖苷键构建,包括具有挑战性的1,2-顺式糖苷键,以极高的收率实现。该策略被迭代应用于访问寡糖,并且可以区分不同立体障碍的醇。
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