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benzoxazol-2-yl 2,3,4,6-tetra-O-benzoyl-1-thio-β-D-galactopyranoside

中文名称
——
中文别名
——
英文名称
benzoxazol-2-yl 2,3,4,6-tetra-O-benzoyl-1-thio-β-D-galactopyranoside
英文别名
[(2R,3S,4S,5R,6S)-6-(1,3-benzoxazol-2-ylsulfanyl)-3,4,5-tribenzoyloxyoxan-2-yl]methyl benzoate
benzoxazol-2-yl 2,3,4,6-tetra-O-benzoyl-1-thio-β-D-galactopyranoside化学式
CAS
——
化学式
C41H31NO10S
mdl
——
分子量
729.764
InChiKey
LKPZCIKFJJPJRH-OJECGNTPSA-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):
    8.9
  • 重原子数:
    53
  • 可旋转键数:
    15
  • 环数:
    7.0
  • sp3杂化的碳原子比例:
    0.15
  • 拓扑面积:
    166
  • 氢给体数:
    0
  • 氢受体数:
    12

反应信息

  • 作为反应物:
    描述:
    甲基2,3,4-三-O-苄基-α-D-吡喃葡萄糖苷benzoxazol-2-yl 2,3,4,6-tetra-O-benzoyl-1-thio-β-D-galactopyranoside 在 3 A molecular sieve 、 silver trifluoromethanesulfonate 作用下, 以 1,2-二氯乙烷 为溶剂, 反应 0.08h, 以92%的产率得到methyl 6-O-(2,3,4,6-tetra-O-benzoyl-β-D-galactopyranosyl)-2,3,4-tri-O-benzyl-α-D-glucopyranoside
    参考文献:
    名称:
    S-Benzoxazolyl (SBox) Glycosides in Oligosaccharide Synthesis: Novel Glycosylation Approach to the Synthesis of β-d-Glucosides, β-d-Galactosides, and α-d-Mannosides
    摘要:
    合乙酰化和合苯甲酰化的S-苯并噁唑基(SBox)糖苷已被合成并应用于高效的1,2-反式糖苷化。对β-d-葡萄糖苷、β-d-半乳糖苷和α-d-甘露糖苷的合成实现了完全的立体选择性和显著高的产率。还证明了苯甲酰化的“去活化”SBox糖苷可以在有活化和去活化的乙硫糖苷同时存在的情况下被选择性激活。成功实现了四糖β-d-Glc-(1-6)-β-d-Gal-(1-6)-β-d-GlcNAc-(1-6)-α-d-GlcOMe的汇聚合成,通过三步连续的选择性糖苷化反应完成。
    DOI:
    10.1055/s-2003-40345
  • 作为产物:
    参考文献:
    名称:
    S-Benzoxazolyl (SBox) Glycosides in Oligosaccharide Synthesis: Novel Glycosylation Approach to the Synthesis of β-d-Glucosides, β-d-Galactosides, and α-d-Mannosides
    摘要:
    合乙酰化和合苯甲酰化的S-苯并噁唑基(SBox)糖苷已被合成并应用于高效的1,2-反式糖苷化。对β-d-葡萄糖苷、β-d-半乳糖苷和α-d-甘露糖苷的合成实现了完全的立体选择性和显著高的产率。还证明了苯甲酰化的“去活化”SBox糖苷可以在有活化和去活化的乙硫糖苷同时存在的情况下被选择性激活。成功实现了四糖β-d-Glc-(1-6)-β-d-Gal-(1-6)-β-d-GlcNAc-(1-6)-α-d-GlcOMe的汇聚合成,通过三步连续的选择性糖苷化反应完成。
    DOI:
    10.1055/s-2003-40345
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文献信息

  • Concise Synthesis of the Unnatural Sphingosine and Psychosine Enantiomer
    作者:Archana R. Parameswar、Jacqueline A. Hawkins、Laurel K. Mydock、Mark S. Sands、Alexei V. Demchenko
    DOI:10.1002/ejoc.201000024
    日期:2010.6
    accumulation of psychosine (galactosyl sphingosine) has been associated with the pathogenesis of Krabbe disease, however, the exact mechanism of its cytotoxicity remains unclear. Herein, we describe the synthesis of the unnatural enantiomer of erythrosphingosine, psychosine, and related derivatives thereof that would allow for the mechanistic elucidation of the toxicity of psychosine.
    精神病药物(半乳糖基鞘氨醇)的积累与克拉伯病的发病机制有关,但是,其细胞毒性的确切机制仍不清楚。在本文中,我们描述了赤藓红神经鞘氨醇,精神神经碱及其相关衍生物的非天然对映异构体的合成,其可以通过机械方式阐明精神神经氨酸的毒性。
  • An orthogonal and reactivity-based one-pot glycosylation strategy for both glycan and nucleoside synthesis: access to TMG-chitotriomycin, lipochitooligosaccharides and capuramycin
    作者:Haiqing He、Lili Xu、Roujing Sun、Yunqin Zhang、Yingying Huang、Zixi Chen、Penghua Li、Rui Yang、Guozhi Xiao
    DOI:10.1039/d0sc06815b
    日期:——
    (O-glycosides) and nucleosides (N-glycosides) play important roles in numerous biological processes. Chemical synthesis is a reliable and effective means to solve the attainability issues of these essential biomolecules. However, due to the stereo- and regiochemical issues during glycan assembly, together with problems including the poor solubility and nucleophilicity of nucleobases in nucleoside synthesis, the
    聚糖( O-糖苷)和核苷( N-糖苷)在许多生物过程中都发挥着重要作用。化学合成是解决这些重要生物分子的可获得性问题的可靠且有效的手段。然而,由于聚糖组装过程中的立体和区域化学问题,以及核苷合成中核碱基的溶解度和亲核性差等问题,高效合成聚糖和核苷的一锅糖基化策略的开发仍然很差且具有挑战性。在这里,我们报告了第一个基于糖基原-(1-苯基乙烯基)苯甲酸酯的正交和基于反应性的一锅糖基化策略,适用于聚糖和核苷合成。这种一锅糖基化策略不仅继承了先前开发的基于糖基原炔基苯甲酸酯的正交一锅糖基化策略的优点,包括无苷元转移、无离开物种的干扰、无难闻气味等优点,而且高度扩展了糖基化的应用范围。范围(聚糖和核苷)并增加可用于多步一锅合成的离去基团的数量(最多形成四个不同的糖苷键)。 特别是,目前的一锅法糖基化策略已成功应用于一种有前景的结核病药物主角卡普拉霉素的全合成,以及对β- N-乙酰氨基葡萄糖苷酶和重要
  • Versatile Synthesis and Mechanism of Activation of <i>S</i>-Benzoxazolyl Glycosides
    作者:Medha N. Kamat、Nigam P. Rath、Alexei V. Demchenko
    DOI:10.1021/jo0711844
    日期:2007.8.31
    As a part of a program for developing new efficient procedures for stereoselective glycosylation, a range of S-benzoxazolyl (SBox) glycosides have been synthesized. The mechanistic aspects of the SBox moiety activation for glycosylation via a variety of conceptually different pathways in the presence of thiophilic, electrophilic, or metal-based promoters have been investigated.
    作为开发用于立体选择性糖基化的新有效方法的程序的一部分,已合成了一系列S-苯并恶唑基(SBox)糖苷。已经研究了在存在基于硫的,亲电子的或基于金属的启动子的情况下经由各种概念上不同的途径进行糖基化的SBox部分活化的机械方面。
  • Orthogonal One-Pot Synthesis of Oligosaccharides Based on Glycosyl<i>ortho</i>-Alkynylbenzoates
    作者:Yunqin Zhang、Guisheng Xiang、Shaojun He、Yikao Hu、Yanjun Liu、Lili Xu、Guozhi Xiao
    DOI:10.1021/acs.orglett.9b00617
    日期:2019.4.5
    of the most popular one-pot glycosylation strategies is orthogonal one-pot synthesis, which was mainly based on thioglycosides. Despite its successful application, shortcomings of thioglycosides including aglycon transfers, interference of departing species and unpleasant odor restrict its application scope. Herein, we report a new and efficient orthogonal one-pot synthesis of oligosaccahrides based
    正交一锅合成是最流行的一锅糖基化策略之一,其主要基于硫代糖苷。尽管已成功应用,但是硫糖苷的缺点包括糖苷配基转移,离去物种的干扰和难闻的气味限制了其应用范围。在本文中,我们报告了一种基于糖基邻炔基苯甲酸酯的新型高效正交一锅合成寡糖的方法,解决了基于硫代糖苷的正交一锅合成的问题。通过这种方法已经有效地合成了十几种寡糖。
  • Protected Sphingosine from Phytosphingosine as an Efficient Acceptor in Glycosylation Reaction
    作者:Roberta Di Benedetto、Luca Zanetti、Monica Varese、Mehdi Rajabi、Riccardo Di Brisco、Luigi Panza
    DOI:10.1021/ol403688t
    日期:2014.2.7
    A convenient, simple, and high-yielding five-step synthesis of a sphingosine acceptor from phytosphingosine is reported, and its behavior in glycosylation reactions is described. Different synthetic paths to sphingosine acceptors using tetrachlorophthalimide as a protecting group for the sphingosine amino function and different glycosylation methods have been explored. Among the acceptors tested, the easiest accessible acceptor, unprotected on the two hydroxyl groups in positions 1 and 3, was regioselectively glycosylated on the primary position, the regioselectivity depending on the donor used.
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