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p-tolyl 3-O-benzyl-4,6-O-benzylidene-1-thio-β-D-glucopyranoside

中文名称
——
中文别名
——
英文名称
p-tolyl 3-O-benzyl-4,6-O-benzylidene-1-thio-β-D-glucopyranoside
英文别名
(2R,4aR,6S,7R,8R,8aR)-6-(4-methylphenyl)sulfanyl-2-phenyl-8-phenylmethoxy-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-7-ol
p-tolyl 3-O-benzyl-4,6-O-benzylidene-1-thio-β-D-glucopyranoside化学式
CAS
——
化学式
C27H28O5S
mdl
——
分子量
464.582
InChiKey
GCPPRORVHZAYTG-XXVOEFFYSA-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:
    6
  • 环数:
    5.0
  • sp3杂化的碳原子比例:
    0.33
  • 拓扑面积:
    82.4
  • 氢给体数:
    1
  • 氢受体数:
    6

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

点击查看最新优质反应信息

文献信息

  • Automated glycan assembly of a <i>S. pneumoniae</i> serotype 3 CPS antigen
    作者:Markus W Weishaupt、Stefan Matthies、Mattan Hurevich、Claney L Pereira、Heung Sik Hahm、Peter H Seeberger
    DOI:10.3762/bjoc.12.139
    日期:——

    Vaccines against S. pneumoniae, one of the most prevalent bacterial infections causing severe disease, rely on isolated capsular polysaccharide (CPS) that are conjugated to proteins. Such isolates contain a heterogeneous oligosaccharide mixture of different chain lengths and frame shifts. Access to defined synthetic S. pneumoniae CPS structures is desirable. Known syntheses of S. pneumoniae serotype 3 CPS rely on a time-consuming and low-yielding late-stage oxidation step, or use disaccharide building blocks which limits variability. Herein, we report the first iterative automated glycan assembly (AGA) of a conjugation-ready S. pneumoniae serotype 3 CPS trisaccharide. This oligosaccharide was assembled using a novel glucuronic acid building block to circumvent the need for a late-stage oxidation. The introduction of a washing step with the activator prior to each glycosylation cycle greatly increased the yields by neutralizing any residual base from deprotection steps in the synthetic cycle. This process improvement is applicable to AGA of many other oligosaccharides.

    针对导致严重疾病的最常见细菌感染之一的肺炎球菌的疫苗依赖于与蛋白质结合的分离的胶囊多糖(CPS)。这种分离物包含不同链长和框移的异质寡糖混合物。获得定义明确的合成肺炎球菌CPS结构是可取的。已知的肺炎球菌3型CPS的合成依赖于耗时且产率低的后期氧化步骤,或者使用二糖建筑块,这限制了变异性。在这里,我们报告了第一个迭代自动糖基组装(AGA)的可结合的肺炎球菌3型CPS三糖的组装。使用一种新型葡萄糖醛酸建筑块组装了这种寡糖,以避免需要后期氧化。在每个糖基化周期之前引入一个活化剂的洗涤步骤大大增加了产量,通过中和合成周期中去保护步骤中的任何残留碱。这个工艺改进适用于许多其他寡糖的AGA。
  • Total Synthesis of Anticoagulant Pentasaccharide Fondaparinux
    作者:Tiehai Li、Hui Ye、Xuefeng Cao、Jiajia Wang、Yonghui Liu、Lifei Zhou、Qiang Liu、Wenjun Wang、Jie Shen、Wei Zhao、Peng Wang
    DOI:10.1002/cmdc.201400019
    日期:2014.5
    The anticoagulant pentasaccharide fondaparinux was synthesized using an improved and optimized synthetic strategy including a convergent [3+2] coupling approach, orthogonal protecting groups and various glycosyl donors. The new methods of glycosylation were also used for controlling the stereochemical configuration and improving the yield of the glycosylation. In addition, HPLC and NMR methods to monitor
    抗凝五糖磺达肝素是使用改进和优化的合成策略合成的,包括收敛的[3 + 2]偶联方法,正交保护基和各种糖基供体。糖基化的新方法也用于控制立体化学构型和提高糖基化的产率。另外,采用HPLC和NMR方法监测磺达肝素的全合成过程。这项工作在相关文献的基础上为磺达肝素的合成和分析提供了详尽的阐述,并为肝素样低聚糖的合成提供了丰富的信息。
  • 2-<i>O</i>-<i>N</i>-Benzylcarbamoyl as a Protecting Group To Promote β-Selective Glycosylation and Its Applications in the Stereoselective Synthesis of Oligosaccharides
    作者:Yin-Jen Lu、Yen-Hsun Lai、You-Yu Lin、Yi-Chi Wang、Pi-Hui Liang
    DOI:10.1021/acs.joc.8b00047
    日期:2018.4.6
    This study examines the utility of the N-benzylcarbamoyl (BnCar) protecting group in glycosylation reactions of the parent O-2 protected carbohydrate donor. It was found that the BnCar group imparted exclusively β-selectivity with primary and secondary alcohols. A mechanistic study revealed the activated intermediate to be the glycosyl triflate in a skew conformation, which results in β-selective glycosylation
    这项研究研究了N-苄基甲酰基(BnCar)保护基在亲本O -2保护的碳水化合物供体的糖基化反应中的作用。发现BnCar基团仅赋予伯醇和仲醇β-选择性。一项机理研究表明,活化的中间体为偏构型的三氟甲磺酸糖基酯,可通过类似S N 2的途径导致β选择性糖基化。BnCar基团可以使用亚硝酸四丁容易地裂解,而不会影响酯和醚保护基。综上所述,这些结果表明BnCar可用于合成复杂的低聚糖,这项工作需要对各种保护基进行精细的化学区分。
  • A One-Pot Synthesis of Glycans and Nucleosides Based on <i>ortho</i>-(1-Phenylvinyl)benzyl Glycosides
    作者:Rui Yang、Haiqing He、Zixi Chen、Yingying Huang、Guozhi Xiao
    DOI:10.1021/acs.orglett.1c02998
    日期:2021.11.5
    synthesis of both glycans and nucleosides remains rare and challenging. Herein, we report a one-pot glycosylation strategy for glycans and nucleosides synthesis based on ortho-(1-phenylvinyl)benzyl glycosides, which has several advantages, including no aglycon transfers, no undesired interference of departing species, no unpleasant odor, and up to the construction of four different glycosidic linkages
    聚糖和核苷的一锅法合成仍然很少见且具有挑战性。在此,我们报告了一种基于邻-(1-苯基乙烯基)苄基糖苷的聚糖和核苷合成的一锅糖基化策略,该策略具有几个优点,包括无糖苷配基转移、无离去物种的不良干扰、无难闻气味等。构建四种不同的糖苷键。
  • TMSOTf-Catalyzed Silylation: Streamlined Regioselective One-Pot Protection and Acetylation of Carbohydrates
    作者:A. Abragam Joseph、Ved Prakash Verma、Xin-Yi Liu、Chia-Hui Wu、Vijay M. Dhurandhare、Cheng-Chung Wang
    DOI:10.1002/ejoc.201101267
    日期:2012.2
    A highly efficient TMSOTf-catalyzed HMDS silylation of sugars, which can easily be integrated with subsequent reactions in one-pot fashion, has been developed. Its usefulness was demonstrated by applications to streamlined regioselective one-pot protection and nonenzymatic acetylation of un
    已经开发出一种高效的 TMSOTf 催化的 HMDS 糖基硅烷化,它可以很容易地以一锅法与后续反应相结合。其在简化区域选择性一锅法保护和非酶乙酰化方面的应用证明了其有用性。
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