1,6-anhydro-4-O-[2-azido-3-O-(4-bromobenzyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-α-D-glucopyranosyl]-2-O-benzoyl-3-O-benzyl-β-L-idopyranose | 1314746-09-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 1,6-anhydro-4-O-[2-azido-3-O-(4-bromobenzyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-α-D-glucopyranosyl]-2-O-benzoyl-3-O-benzyl-β-L-idopyranose
• 英文别名: 4-O-[2-Azido-3-O-(4-bromobenzyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-alpha-D-glucopyranosyl]-2-O-benzoyl-3-O-benzyl-1,6-anhydro-beta-L-idopyranose；[(1S,2R,3S,4R,5S)-2-[(2R,3R,4R,5S,6R)-3-azido-4-[(4-bromophenyl)methoxy]-6-[[tert-butyl(diphenyl)silyl]oxymethyl]-5-hydroxyoxan-2-yl]oxy-3-phenylmethoxy-6,8-dioxabicyclo[3.2.1]octan-4-yl] benzoate
• CAS: 1314746-09-2
• 化学式: C₄₉H₅₂BrN₃O₁₀Si
• 分子量: 950.955
• InChiKey: LXYAFOLHBUWMMH-QXTSRFNHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.63
• 重原子数：
  64
• 可旋转键数：
  18
• 环数：
  8.0
• sp3杂化的碳原子比例：
  0.37
• 拓扑面积：
  126
• 氢给体数：
  1
• 氢受体数：
  12

反应信息

• 作为反应物：
  描述：

  1,6-anhydro-4-O-[2-azido-3-O-(4-bromobenzyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-α-D-glucopyranosyl]-2-O-benzoyl-3-O-benzyl-β-L-idopyranose 在 4-二甲氨基吡啶 、 copper(II) bis(trifluoromethanesulfonate) 、 三乙胺 作用下， 以 二氯甲烷 为溶剂， 生成 6-O-Acetyl-4-O-[2-azido-3-O-(4-bromobenzyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-4-O-levulinyl-alpha-D-glucopyranosyl]-2-O-benzoyl-3-O-benzyl-alpha,beta-L-idopyranosyl acetate
  参考文献：
  名称：

  抑制单纯疱疹病毒 1 型宿主细胞相互作用的 3-O-磺化硫酸乙酰肝素八糖的合成

  摘要：

  细胞表面碳水化合物在许多生物学上重要的过程中发挥着重要作用。例如，硫酸乙酰肝素是一种无处不在的多硫酸化多糖，除其他外，它参与了单纯疱疹病毒 1 型 (HSV-1) 感染的初始步骤。病毒与细胞表面硫酸乙酰肝素相互作用以促进宿主细胞附着和进入。已发现3- O-磺化硫酸乙酰肝素作为 HSV-1 进入受体发挥作用。实现对这些相互作用的完整理解需要对此类寡糖进行化学合成，但这仍然具有挑战性。在这里，我们提出了一种合成两种不规则 3- O的简便方法-磺化硫酸乙酰肝素八糖，利用关键的二糖中间体来获得寡糖链组装的不同结构单元。尽管存在显着的结构差异，但制备的 3- O-磺化糖以剂量依赖性方式阻断病毒感染，彼此之间具有显着的相似性。

  DOI：

  10.1038/nchem.1073
• 作为产物：
  描述：

  p-methylphenyl 2-azido-3-O-(p-bromobenzyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-4-O-(2-naphthylmethyl)-1-thio-D-glucopyranoside 在 N-碘代丁二酰亚胺 、 三氟甲磺酸 、 2,3-二氯-5,6-二氰基-1,4-苯醌 作用下， 以 二氯甲烷 、 水 为溶剂， 反应 8.0h， 生成 1,6-anhydro-4-O-[2-azido-3-O-(4-bromobenzyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-α-D-glucopyranosyl]-2-O-benzoyl-3-O-benzyl-β-L-idopyranose
  参考文献：
  名称：

  抑制单纯疱疹病毒 1 型宿主细胞相互作用的 3-O-磺化硫酸乙酰肝素八糖的合成

  摘要：

  细胞表面碳水化合物在许多生物学上重要的过程中发挥着重要作用。例如，硫酸乙酰肝素是一种无处不在的多硫酸化多糖，除其他外，它参与了单纯疱疹病毒 1 型 (HSV-1) 感染的初始步骤。病毒与细胞表面硫酸乙酰肝素相互作用以促进宿主细胞附着和进入。已发现3- O-磺化硫酸乙酰肝素作为 HSV-1 进入受体发挥作用。实现对这些相互作用的完整理解需要对此类寡糖进行化学合成，但这仍然具有挑战性。在这里，我们提出了一种合成两种不规则 3- O的简便方法-磺化硫酸乙酰肝素八糖，利用关键的二糖中间体来获得寡糖链组装的不同结构单元。尽管存在显着的结构差异，但制备的 3- O-磺化糖以剂量依赖性方式阻断病毒感染，彼此之间具有显着的相似性。

  DOI：

  10.1038/nchem.1073

文献信息

• Trisaccharide Sulfate and Its Sulfonamide as an Effective Substrate and Inhibitor of Human Endo-<i>O</i>-sulfatase-1
  作者：Li-Ting Chiu、Narayana Murthy Sabbavarapu、Wei-Chen Lin、Chiao-Yuan Fan、Chih-Chung Wu、Ting-Jen Rachel Cheng、Chi-Huey Wong、Shang-Cheng Hung

  DOI：10.1021/jacs.0c00005

  日期：2020.3.18

  Human endo-O-sulfatases (Sulf-1 and Sulf-2) are extracellular heparan sulfate proteoglycan (HSPG)-specific 6-O-endosulfatases, which regulate a multitude of cell-signaling events through heparan sulfate (HS)-protein interactions and are associated with the onset of osteoarthritis. These endo-O-sulfatases are transported onto the cell surface to liberate the 6-sulfate groups from the internal D-glucosamine residues in the highly sulfated subdomains of HSPGs. In this study, a variety of HS oligosaccharides with different chain lengths and N-and O-sulfation patterns via chemical synthesis were systematically studied about the substrate specificity of human Sulf-1 employing the fluorogenic substrate 4-methylumbelliferyl sulfate (4-MUS) in a competition assay. The trisaccharide sulfate IdoA2S-GlcNS6S-IdoA2S was found to be the minimal-size substrate for Sulf-1, and substitution of the sulfate group at the 6-O position of the D-glucosamine unit with the sulfonamide motif effectively inhibited the Sulf-1 activity with IC50 = 0.53 mu M, K-i = 0.36 mu M, and K-D = 12 nM.
• α-Glycosylation by <scp>d</scp>-Glucosamine-Derived Donors: Synthesis of Heparosan and Heparin Analogues That Interact with Mycobacterial Heparin-Binding Hemagglutinin
  作者：Medel Manuel L. Zulueta、Shu-Yi Lin、Ya-Ting Lin、Ching-Jui Huang、Chun-Chih Wang、Chiao-Chu Ku、Zhonghao Shi、Chia-Lin Chyan、Deli Irene、Liang-Hin Lim、Tsung-I Tsai、Yu-Peng Hu、Susan D. Arco、Chi-Huey Wong、Shang-Cheng Hung

  DOI：10.1021/ja302640p

  日期：2012.5.30

  Numerous biomolecules possess alpha-D-glucosamine as structural component. However, chemical glycosylations aimed at this backbone are usually not easily attained without generating the unwanted beta-isomer. We report herein a versatile approach in affording full alpha-stereoselectivity built upon a carefully selected set of orthogonal protecting groups on a D-glucosaminyl donor. The excellent stereoselectivity provided by the protecting group combination was found independent of leaving groups and activators. With the trichloroacetimidate as the optimum donor leaving group, core skeletons of glycosylphosphatidyl inositol anchors, heparosan, heparan sulfate, and heparin were efficiently assembled. The orthogonal protecting groups were successfully manipulated to further carry out the total syntheses of heparosan tri- and pentasaccharides and heparin di-, tetra-, hexa-, and octasaccharide analogues. Using the heparin analogues, heparin-binding hemagglutinin, a virulence factor of Mycobacterium tuberculosis, was found to bind at least six sugar units with the interaction notably being entropically driven.