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ethyl 2,6-di-O-benzoyl-4,6-O-isopropylidene-1-thio-β-D-galactopyranoside | 213743-10-3

中文名称
——
中文别名
——
英文名称
ethyl 2,6-di-O-benzoyl-4,6-O-isopropylidene-1-thio-β-D-galactopyranoside
英文别名
[(4aR,6S,7R,8S,8aS)-7-benzoyloxy-6-ethylsulfanyl-2,2-dimethyl-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-8-yl] benzoate
ethyl 2,6-di-O-benzoyl-4,6-O-isopropylidene-1-thio-β-D-galactopyranoside化学式
CAS
213743-10-3
化学式
C25H28O7S
mdl
——
分子量
472.559
InChiKey
FWWXBPOBEBRDID-ZTGMJEERSA-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):
    4.6
  • 重原子数:
    33
  • 可旋转键数:
    8
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    0.44
  • 拓扑面积:
    106
  • 氢给体数:
    0
  • 氢受体数:
    8

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:
    ethyl 2,6-di-O-benzoyl-4,6-O-isopropylidene-1-thio-β-D-galactopyranoside 在 4 A molecular sieve 、 sodium methylatesilver trifluoromethanesulfonate三乙胺三氟乙酸 、 tin(ll) chloride 作用下, 以 四氢呋喃甲醇乙醚二氯甲烷N,N-二甲基甲酰胺 为溶剂, 反应 29.91h, 生成
    参考文献:
    名称:
    Chemical synthesis of globotriose and galabiose: relative stabilities of their complexes with Escherichia coli Shiga-like toxin-1 as determined by denaturation-titration with guanidinium chloride
    摘要:
    Globotriose [α-D-Gal-(1→4)-β-D-Gal-(1→4)-D-Glc] 是球三糖苷 (Gb3) 的碳水化合物部分,也称为生发中心 B 细胞分化抗原 CD77,是一种存在于某些哺乳动物细胞质膜上的糖脂。在 Gb3 中,球三糖作为志贺毒素和志贺样毒素(verocytotoxins)的细胞表面受体。这里我们报道了球三糖和相应的末端二糖,galabiose [α-D-Gal-(1→4)-β-D-Gal] 的化学合成。球三糖和 galabiose 通过一个连接子连接到 CNBr 活化的 Sepharose 上,生成亲和矩阵,允许从粗大肠杆菌匀浆中一步纯化重组志贺样毒素-1。毒素通过 6 M 胲盐酸盐洗脱从任一固定糖中释放出来。在稀释变性剂后,释放的毒素具有完全的催化活性。变性滴定实验显示,结合在 galabiose-Sepharose 上的毒素在 2.3 M 胲盐酸盐下释放,而从 globotriose-Sepharose 上释放需要更高的 4.8 M 浓度。这些结果表明,球三糖的葡萄糖成分相对于 galabiose,对结合能的贡献约为 2.6 kcal mol–1。
    DOI:
    10.1039/a801429i
  • 作为产物:
    参考文献:
    名称:
    Chemical synthesis of globotriose and galabiose: relative stabilities of their complexes with Escherichia coli Shiga-like toxin-1 as determined by denaturation-titration with guanidinium chloride
    摘要:
    Globotriose [α-D-Gal-(1→4)-β-D-Gal-(1→4)-D-Glc] 是球三糖苷 (Gb3) 的碳水化合物部分,也称为生发中心 B 细胞分化抗原 CD77,是一种存在于某些哺乳动物细胞质膜上的糖脂。在 Gb3 中,球三糖作为志贺毒素和志贺样毒素(verocytotoxins)的细胞表面受体。这里我们报道了球三糖和相应的末端二糖,galabiose [α-D-Gal-(1→4)-β-D-Gal] 的化学合成。球三糖和 galabiose 通过一个连接子连接到 CNBr 活化的 Sepharose 上,生成亲和矩阵,允许从粗大肠杆菌匀浆中一步纯化重组志贺样毒素-1。毒素通过 6 M 胲盐酸盐洗脱从任一固定糖中释放出来。在稀释变性剂后,释放的毒素具有完全的催化活性。变性滴定实验显示,结合在 galabiose-Sepharose 上的毒素在 2.3 M 胲盐酸盐下释放,而从 globotriose-Sepharose 上释放需要更高的 4.8 M 浓度。这些结果表明,球三糖的葡萄糖成分相对于 galabiose,对结合能的贡献约为 2.6 kcal mol–1。
    DOI:
    10.1039/a801429i
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文献信息

  • Synthesis of Oligosaccharides Designed to form Micelles, Corresponding to Structures Found in Ovarian Cyst Fluid
    作者:Therese Buskas、Peter Konradsson
    DOI:10.1080/07328300008544063
    日期:2000.1
    The syntheses of alpha-D-GlcpNAc-(1-->4)-beta-D-Galp-(1-->4)-beta-D-GlcNAc-(1-->O)-(CH2)(15)CH3 (1) and fragments thereof, corresponding to structures found in human ovarian cyst fluid, are described. Silver triflate promoted coupling of 3.4,6-tri-O-acetyl-2-azido-2-deoxy-beta-D-glucopyranosyl bromide (12) and galactose acceptor (11) gave a disaccharide donor (13), which was readily transformed into the corresponding bromo-derivative 18. For the synthesis of disaccharide beta-D-Galp-(1-->4)-D-GlcNAc, several differently protected glucosamine accepters were prepared. It was found that cetyl alcohol needed to be introduced after the formation of the P-galactoside bond. Glycosylation of pent-4-enyl 3,6-di-O-benzyl-2-deoxy-2-tetrachlorophthalimido-beta-D-glucopyranoside (30) with (3,4,6-tri-O-acetyl-2-azido-2-deoxy-alpha-D-glucopyranosyl)-(1-->4)-2,3,6-tri-O-benzoyl-alpha-D-galactopyranosyl bromide (18) by use of silver triflate as promoter gave the desired trisaccharide 31. Finally 31 was transformed via coupling to the long alkyl chain aglycon and deprotection into the title compound 1.
  • Chemical synthesis of globotriose and galabiose: relative stabilities of their complexes with Escherichia coli Shiga-like toxin-1 as determined by denaturation-titration with guanidinium chloride
    作者:Dieter Müller、Gabin Vic、Peter Critchley、David H. G. Crout、Nicholas Lea、Lynne Roberts、J. Michael Lord
    DOI:10.1039/a801429i
    日期:——
    Globotriose [α-D-Gal-(1→4)-β-D-Gal-(1→4)-D-Glc] is the carbohydrate moiety of the globotriosyl ceramide (Gb3), also known as the germinal centre B-cell differentiation antigen CD77, a glycolipid present on the plasma membrane of certain mammalian cells. In Gb3, globotriose functions as the cell-surface receptor for Shiga toxin and for the Shiga-like toxins (verocytotoxins). Here we report the chemical synthesis of globotriose and the corresponding terminal disaccharide, galabiose [α-D-Gal-(1→4)-β-D-Gal]. Globotriose and galabiose are attached via a linker to CNBr-activated Sepharose to generate affinity matrices that permit the one-step purification of recombinant Shiga-like toxin-1 from crude E. coli homogenates. Toxin is released from either of the immobilised saccharides by elution with 6 M guanidinium chloride. After dilution of the denaturant, the released toxin had full catalytic activity. Denaturation-titration experiments show that the bound toxin is released from galabiose-Sepharose at 2.3 M guanidinium chloride, while its release from globotriose-Sepharose requires a higher concentration of 4.8 M. These results indicate that the glucose component of globotriose contributes ≈2.6 kcal mol–1 to the binding energy relative to galabiose.
    Globotriose [α-D-Gal-(1→4)-β-D-Gal-(1→4)-D-Glc] 是球三糖苷 (Gb3) 的碳水化合物部分,也称为生发中心 B 细胞分化抗原 CD77,是一种存在于某些哺乳动物细胞质膜上的糖脂。在 Gb3 中,球三糖作为志贺毒素和志贺样毒素(verocytotoxins)的细胞表面受体。这里我们报道了球三糖和相应的末端二糖,galabiose [α-D-Gal-(1→4)-β-D-Gal] 的化学合成。球三糖和 galabiose 通过一个连接子连接到 CNBr 活化的 Sepharose 上,生成亲和矩阵,允许从粗大肠杆菌匀浆中一步纯化重组志贺样毒素-1。毒素通过 6 M 胲盐酸盐洗脱从任一固定糖中释放出来。在稀释变性剂后,释放的毒素具有完全的催化活性。变性滴定实验显示,结合在 galabiose-Sepharose 上的毒素在 2.3 M 胲盐酸盐下释放,而从 globotriose-Sepharose 上释放需要更高的 4.8 M 浓度。这些结果表明,球三糖的葡萄糖成分相对于 galabiose,对结合能的贡献约为 2.6 kcal mol–1。
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