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1,2:5,6-di-O-isopropylidene-3-O-(2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl)-α-D-glucofuranose | 64694-21-9

中文名称
——
中文别名
——
英文名称
1,2:5,6-di-O-isopropylidene-3-O-(2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl)-α-D-glucofuranose
英文别名
1,2:5,6-di-O-isopropylidene-α-D-glucofuranos-3-yl 2,3,4,6-tetra-O-benzyl-α-D-glucopyranose;1,2:5,6-di-O-isopropylidene-O-(2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl)-(1-3)-α-D-glucofuranose;2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl-(1→3)-1,2:5,6-di-O-isopropylidene-α-D-glucofuranoside;O-(2,3,4,6-tetra-O-benzyl-D-glucopyranosyl)-(1-3)-1,2:5,6-di-O-isopropylidenene-α-D-glucofuranoside;(3aR,5R,6S,6aR)-5-((R)-2,2-dimethyl-1,3-dioxolan-4-yl)-2,2-dimethyl-6-(((2R,3R,4S,5R,6R)-3,4,5-tris(benzyloxy)-6-((benzyloxy)methyl)tetrahydro-2H-pyran-2-yl)oxy)tetrahydrofuro[2,3-d][1,3]dioxole;(3aR,5R,6S,6aR)-5-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-6-[(2R,3R,4S,5R,6R)-3,4,5-tris(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]oxy-3a,5,6,6a-tetrahydrofuro[2,3-d][1,3]dioxole
1,2:5,6-di-O-isopropylidene-3-O-(2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl)-α-D-glucofuranose化学式
CAS
64694-21-9
化学式
C46H54O11
mdl
——
分子量
782.928
InChiKey
OIGCVNUVBSVJER-KIVRNGJPSA-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
  • 重原子数:
    57
  • 可旋转键数:
    16
  • 环数:
    8.0
  • sp3杂化的碳原子比例:
    0.48
  • 拓扑面积:
    102
  • 氢给体数:
    0
  • 氢受体数:
    11

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
    • 1
    • 2

反应信息

  • 作为反应物:
    描述:
    1,2:5,6-di-O-isopropylidene-3-O-(2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl)-α-D-glucofuranose吡啶三氟化硼乙醚 作用下, 以 二氯甲烷 为溶剂, 反应 4.0h, 生成 ethyl 2,4,6-tri-O-acetyl-3-O-(2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl)-1-thio-α-D-glucopyranoside
    参考文献:
    名称:
    2型克雷伯菌的抗原四糖重复单元的合成
    摘要:
    二糖乙基2,4,6-三-O-乙酰基-3-O-(2,3,4,6-四-O-苄基-α-D-吡喃葡萄糖基)-1-硫代-β-D-吡喃葡萄糖苷(6)和2,6-二-O-苄基-3-O-(2,3,4-三-O-苄基甲基-α-D-吡喃葡萄糖基尿酸甲酯)-β-D-甘露吡喃糖苷(21)在三氟甲磺酸甲酯的存在下进行合成和缩合,得到四糖衍生物。除去保护基,得到3-O-(甲基α-D-吡喃葡萄糖基尿酸)-4-O-(3-O-α-D-吡喃葡萄糖基-β-D-吡喃葡萄糖基)-β-D-甘露吡喃糖苷(23), 2型克雷伯氏菌抗原的重复单元,以其甲酯甲基糖苷的形式存在。
    DOI:
    10.1016/0008-6215(95)00231-x
  • 作为产物:
    参考文献:
    名称:
    立体选择性合成α-连接的糖类,方法是将每个O-苄基化的2-吡啶基1-硫基己吡喃糖苷用作糖基供体,并使用甲基碘作为活化剂
    摘要:
    描述了一种新的,实用的,立体选择性糖苷化方法,其中每个D-葡萄糖-(1),D-半乳糖-(2),D-甘露聚糖-(- )的O-苄基化2-吡啶基1-硫代-α/β-己吡喃糖基3)和L-鼠李糖(4)构型已通过甲基碘活化与各种糖醇(6,8-11)有效偶联,获得了α-连接的二糖(7,12-19)。供体1与二糖受体20的偶联,以及二糖供体5与8的偶联,以获得α-连接的三糖21和22也进行了描述。还讨论了α选择性的可能机理。
    DOI:
    10.1016/s0040-4020(01)86571-6
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文献信息

  • Tandem Catalysis Strategy for Direct Glycosylation of 1-Hydroxy Sugars. Methoxyacetic Acid as an Effective Catalytic Mediator
    作者:Yasuo Yokoyama、Junji Inanaga、Takeshi Hanamoto、Shoko Suzuki、Hiroshi Furuno、Kosuke Shimizu
    DOI:10.3987/com-08-s(d)74
    日期:——
    1-Hydroxy sugars were dehydratively coupled with a variety of alcohols including thiophenol in the presence of a catalytic amount of ytterbium(III) triflate [Yb(OTf) 3 ] and methoxyacetic acid to give the corresponding glycosides in good to excellent yields, and in some cases, with high stereoselectivities. The reaction proceeds through selective esterification of 1-hydroxy sugars with methoxyacetic
    在催化量的三氟甲磺酸 (III) [Yb(OTf) 3 ] 和甲氧基乙酸的存在下,将 1-羟基糖与包括苯硫酚在内的多种醇脱偶联,得到相应的糖苷,收率良好至极好,并且在在某些情况下,具有高立体选择性。在作为糖基受体的游离醇存在下,该反应通过 1-羟基糖与甲氧基乙酸的选择性酯化进行。讨论了甲氧基乙酸介导的Yb(OTf) 3 串联催化的机理。
  • A New, Efficient Glycosylation Method for Oligosaccharide Synthesis under Neutral Conditions:  Preparation and Use of New DISAL Donors
    作者:Lars Petersen、Knud J. Jensen
    DOI:10.1021/jo0057654
    日期:2001.9.1
    Efficient, stereoselective glycosylation methods are required for the synthesis of complex oligosaccharides as tools in glycobiology. All glycosylation methods, which have found wide acceptance, rely on Lewis acid activation of glycosyl donors prior to glycosylation. Here, we present a new and efficient method for glycosylation under neutral or mildly basic conditions. Glycosides of methyl 2-hydroxy-3
    需要高效,立体选择性的糖基化方法来合成复杂的寡糖,并将其作为糖生物学的工具。已经被广泛接受的所有糖基化方法都依赖于糖基化之前糖基供体的路易斯酸活化。在这里,我们提出了一种在中性或轻度碱性条件下糖基化的新方法。通过亲核芳族取代制备2-羟基-3,5-二硝基苯甲酸甲酯(DISAL)及其对位异构体4-羟基-3,5-二硝基苯甲酸甲酯的糖苷。在它们作为糖基供体的潜力的第一个证明中,实现了甲醇的立体定向糖基化。在受阻醇的糖基化反应中,β-给体被证明具有更高的反应性,并且主要形成了α-葡萄糖苷。被保护的单糖的糖基化,在没有路易斯酸和碱的情况下,在40-60℃下于1-甲基-2-吡咯烷酮NMP)中平稳地进行与游离的6-OH或3-OH的反应,获得了良好的产率。3-OH的糖基化仅产生α-连接的二糖。
  • A mild general method for the synthesis of ∝-linked disaccharides
    作者:G.Venugopal Reddy、Vinayak R. Kulkarni、Hari Babu Mereyala
    DOI:10.1016/s0040-4039(01)80711-5
    日期:1989.1
    Stereoselective ∝-glycosylations may be achieved using stable 2-pyridyl thioglycosides (anomeric mixture) having a non-participating 2-substituent as glycosyl donor and methyl iodide as an activator.
    使用具有非参与性2-取代基作为糖基供体和甲基作为活化剂的稳定的2-吡啶基硫代糖苷(端基异构体混合物)可以实现立体选择性的β-糖基化。
  • Tris(pentafluorophenyl)borane-Promoted Stereoselective Glycosylation with Glycosyl Trichloroacetimidates under Mild Conditions
    作者:Kunj Bihari Mishra、Adesh Kumar Singh、Jeyakumar Kandasamy
    DOI:10.1021/acs.joc.8b00215
    日期:2018.4.6
    Tris(pentafluorophenyl)borane-promoted stereoselective glycosylation with trichloroacetimidate glycosyl donors is described. The reactions proceed efficiently with a wide range of acceptors, from sugar to nonsugar, under mild conditions in the presence of a catalytic amount of B(C6F5)3. The perbenzylated glucosyl α-imidate provides β-selective glycosides in 70–92% yields.
    描述了用三酰亚胺酸酯糖基供体的三(五氟苯基)硼烷促进的立体选择性糖基化。在催化量的B(C 6 F 5)3存在下,在温和条件下,反应可利用各种受体(从糖到非糖)有效地进行。过苄基化的葡萄糖基α-亚酸酯以70-92%的产率提供β-选择性糖苷。
  • A new efficient glycosylation method employing glycosyl pentenoates and PhSeOTf
    作者:Tae Jin Choi、Ju Yuel Baek、Heung Bae Jeon、Kwan Soo Kim
    DOI:10.1016/j.tetlet.2006.10.158
    日期:2006.12
    The PhSeOTf promoted glycosylations of various glycosyl acceptors with mannosyl pentenoates and glucosyl pentenoates as glycosyl donors afforded corresponding disaccharides in high yields. And the present glycosyl pentenoates/PhSeOTf method showed that the complete α-selective mannosylation of secondary alcohol acceptors was achieved with 2,3,4,6-tetra-O-benzyl-d-mannopyranosyl pentenoate to give α-disaccharides
    PhSeOTf以甘露糖戊烯酸酯和葡糖戊烯酸酯促进各种糖基受体的糖基化,因为糖基供体以高收率提供了相应的二糖。目前的糖基戊烯酸酯/ PhSeOTf方法表明,用2,3,4,6-四-O-苄基-d-甘露喃糖基戊烯酸酯可以实现仲醇受体的完整α-选择性甘露糖基化反应,从而获得高收率的α-二糖。
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