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O-(2-deoxy-2-azido-3,4,6-tri-O-benzyl-β-D-galactopyranosyl) trichloroacetimidate | 205593-86-8

中文名称
——
中文别名
——
英文名称
O-(2-deoxy-2-azido-3,4,6-tri-O-benzyl-β-D-galactopyranosyl) trichloroacetimidate
英文别名
3,4,6-tri-O-benzyl-2-deoxy-2-azido-β-D-galactopyranosyl 2,2,2-trichloroacetimidate;[(2S,3R,4R,5R,6R)-3-azido-4,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl] 2,2,2-trichloroethanimidate
O-(2-deoxy-2-azido-3,4,6-tri-O-benzyl-β-D-galactopyranosyl) trichloroacetimidate化学式
CAS
205593-86-8
化学式
C29H29Cl3N4O5
mdl
——
分子量
619.932
InChiKey
UNTPMXAMWXTTHZ-SEFGFODJSA-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):
    7
  • 重原子数:
    41
  • 可旋转键数:
    13
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    0.34
  • 拓扑面积:
    84.4
  • 氢给体数:
    1
  • 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

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文献信息

  • Synthesis of α-D-Gal<i>p</i>N<sub>3</sub>-(1-3)-D-Gal<i>p</i>N<sub>3</sub>: α- and 3-<i>O-</i>selectivity using 3,4-diol acceptors
    作者:Emil Glibstrup、Christian Marcus Pedersen
    DOI:10.3762/bjoc.14.258
    日期:——
    The motif α-D-GalpNAc-(1-3)-D-GalpNAc is very common in Nature and hence its synthesis highly relevant. The synthesis of its azido precursor has been studied and optimized in terms of steps, yields and selectivity. It has been found that glycosylation of the 3,4-diol acceptor is an advantage over the use of a 4-O-protected acceptor and that both regio- and anomeric selectivity is enhanced by bulky
    α-D-GalpNAc-(1-3)-D-GalpNAc基序在自然界很常见,因此其合成极为相关。已对其叠氮基前体的合成进行了步骤,产率和选择性方面的研究和优化。已经发现3,4-二醇受体的糖基化相对于使用4-O-保护的受体是有利的,并且庞大的6-O-保护基团提高了区域和异头异构体的选择性。受体和供体由共同的结构单元制成,限制了保护性操作,在这种情况下,不可避免的副反应。
  • A highly stereoselective construction of 1,2-trans-β-glycosidic linkages capitalizing on 2-azido-2-deoxy-d-glycosyl diphenyl phosphates as glycosyl donors
    作者:Toshifumi Tsuda、Seiichi Nakamura、Shunichi Hashimoto
    DOI:10.1016/j.tet.2004.08.076
    日期:2004.11
    The scope of TMSOTf-promoted glycosidation of 2-azido-2-deoxyglycopyranosyl diphenyl phosphates is investigated. The 3,4,6-tri-O-benzyl-protected glucosyl and galactosyl donors and the 4,6-O-benzylidene-protected galactosyl donor each react with a range of acceptor alcohols in the presence of a stoichiometric amount of TMSOTf in propionitrile at -78 degreesC to afford 1,2-trans-beta-linked disaccharides in high yields with alpha:beta ratios ranging from 9:91 to 1: > 99, regardless of the anomeric composition of the donor used. The use of propionitrile as a solvent at -78 degreesC has proven to be among the best choice for the highest levels of beta-selectivity reported to date for this type of glycosidation. A plausible reaction mechanism, which features a large equilibrium preference for alpha-glycosyl-nitrilium ions over beta-nitrilium ions, is proposed based on byproducts formed through their intermediacy and accounts for the observed excellent beta-selectivities. (C) 2004 Elsevier Ltd. All rights reserved.
  • Total Synthesis of the Congested, Bisphosphorylated <i>Morganella morganii</i> Zwitterionic Trisaccharide Repeating Unit
    作者:D. Jamin Keith、Steven D. Townsend
    DOI:10.1021/jacs.9b06830
    日期:2019.8.14
    Zwitterionic polysaccharides (ZPS) activate T-cell-dependent immune responses by major histocompatibility complex class II presentation. Herein, we report the first synthesis of a Morganella morganii ZPS repeating unit as an enabling tool in the synthesis of novel ZPS materials. The repeating unit incorporates a 1,2-cis--glycosidic bond; the problematic 1,2-trans-galactosidic bond, Gal-β(1→3)-GalNAc;
    两性离子多糖 (ZPS) 通过主要组织相容性复合体 II 类呈递激活 T 细胞依赖性免疫反应。在此,我们报告了摩根氏菌 ZPS 重复单元的首次合成,作为合成新型 ZPS 材料的有利工具。重复单元包含一个 1,2-顺式-α-糖苷键;有问题的 1,2-反式半乳糖苷键,Gal-β(1→3)-GalNAc;和磷酸甘油和磷酸胆碱残基,它们以前没有被观察到作为同一寡糖上的官能团。成功的第三代方法利用了磷酸甘油功能化受体的一流糖基化。为了安装磷酸胆碱单元,合成了一种高效的磷酸胆碱供体。
  • Stereocontrolled Synthesis of α-<i>C</i>-Galactosamine Derivatives via Chelation-Controlled <i>C</i>-Glycosylation
    作者:Dominique Urban、Troels Skrydstrup、Jean-Marie Beau
    DOI:10.1021/jo971727h
    日期:1998.4.1
    or aldehydes under Barbier conditions led unexpectedly to the stereoselective synthesis of alpha-C-galactosamine derivatives in good yields. With carbonyl substrates, alpha:beta selectivities ranged from 20:1 to 5:1, and with aldehydes a stereoselectivity of approximately 5:1 was observed at C7 in favor of the S-isomer. The stereochemical preference of these C-glycosylation reactions is explained by
    在巴比尔条件下,二碘化sa通过酮或醛促进的二碘化mar还原的2-脱氧-2-乙酰氨基七乳糖基吡啶基砜α-5出乎意料地以高收率立体合成了α-C-半乳糖胺衍生物。对于羰基底物,α:β选择性范围为20:1至5:1,对于醛,在C7处观察到约5:1的立体选择性,有利于S-异构体。这些C-糖基化反应的立体化学偏好是通过α-定向异头糖基sa(III)化合物的中间体来解释的,该化合物通过金属离子与C2-乙酰氨基的螯合来稳定。
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