摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词

2-azidoethyl (β-D-galactopyranosyl)-(1->4)-O-2-acetamido-2-deoxy-β-D-glucopyranoside | 338971-38-3

中文名称
——
中文别名
——
英文名称
2-azidoethyl (β-D-galactopyranosyl)-(1->4)-O-2-acetamido-2-deoxy-β-D-glucopyranoside
英文别名
2-azidoethyl (β-D-galactopyranosyl)-(1->4)-2-acetamido-2-deoxy-β-D-glucopyranoside;2'-azidoethyl β-D-galactopyranosyl-(1->4)-2-acetamido-2-deoxy-β-D-glucopyranoside;2-azidoethyl (β-D-galactopyranosyl)-(1→4)-2-acetamido-2-deoxy-β-D-glucopyranoside;2-azidoethyl β-D-galactopyranosyl-(1,4)-2-acetamido-2-deoxy-β-D-glucopyranoside;2-azidoethyl N-acetyllactosamine;N-[(2R,3R,4R,5S,6R)-2-(2-azidoethoxy)-4-hydroxy-6-(hydroxymethyl)-5-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-3-yl]acetamide
2-azidoethyl (β-D-galactopyranosyl)-(1->4)-O-2-acetamido-2-deoxy-β-D-glucopyranoside化学式
CAS
338971-38-3
化学式
C16H28N4O11
mdl
——
分子量
452.419
InChiKey
GBIYEXBPCNHQHL-NSSUFJHZSA-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):
    -3.3
  • 重原子数:
    31
  • 可旋转键数:
    9
  • 环数:
    2.0
  • sp3杂化的碳原子比例:
    0.94
  • 拓扑面积:
    202
  • 氢给体数:
    7
  • 氢受体数:
    13

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
    • 1
    • 2

反应信息

  • 作为反应物:
    描述:
    2-azidoethyl (β-D-galactopyranosyl)-(1->4)-O-2-acetamido-2-deoxy-β-D-glucopyranoside 在 pasteurella multocida α2−3-sialyltransferase 1 、 N,N-二异丙基乙胺 作用下, 以 四氢呋喃 为溶剂, 生成
    参考文献:
    名称:
    In Silico-Aided Design of a Glycan Ligand of Sialoadhesin for in Vivo Targeting of Macrophages
    摘要:
    Cell-specific delivery of therapeutic agents using ligand targeting is gaining interest because of its potential for increased efficacy and reduced side effects. The challenge is to develop a suitable ligand for a cell-surface receptor that is selectively expressed on the desired cell. Sialoadhesin (Sn, Siglec-1, CD169), a sialic acid-binding immunoglobulin-like lectin (Siglec) expressed on subsets of resident and inflammatory macrophages, is an attractive target for the development of a ligand-targeted delivery system. Here we report the development of a high-affinity and selective ligancl for Sn that is an analogue of the natural ligand and is capable of targeting liposomal nanoparticles to Sn-expressing cells in vivo. An efficient in silico screen of a library of similar to 8400 carboxylic acids was the key to identifying novel 9-N-acyl-substituted N-acetylneuramic acid (Neu5Ac) substituents as potential lead compounds. A small panel of targets were selected from the screen and synthesized to evaluate their affinities and selectivities. The most potent of these Sn ligands, (4H-thieno[3,2-c]chromene-2-carbamoyl)-Neu5Ac alpha 2-3Gal beta 1-4GlcNAc ((TCC)Neu5Ac), was conjugated to lipids for display on a liposomal nanoparticle for evaluation of targeted delivery to cells. The (TCC)Neu5Ac liposomes were found to target liposomes selectively to cells expressing either murine or human Sn in vitro, and when administered to mice, they exhibited in vivo targeting to Sn-positive macrophages.
    DOI:
    10.1021/ja307501e
  • 作为产物:
    参考文献:
    名称:
    提供高特异性抗Gal免疫应答的α-Gal三糖表位的设计和合成†
    摘要:
    展示Galα(1,3)Gal表位的碳水化合物抗原可被人类天然存在的抗体识别。这些抗-Gal抗体最多占血清IgG的1%,并被认为是有害的,因为它们会导致超急性器官排斥。为了模拟这种情况,将α(1,3)半乳糖基转移酶敲除小鼠接种Galα(1,3)Gal表位。在我们的研究中,检查了由方酸酯部分连接的由Galα(1,3)Galβ(1,4)GlcNAc或Galα(1,3)Galβ(1,4)Glc组成的两个α-Gal三糖表位是否存在。它们在KO小鼠中引发免疫反应的能力。使用两组分酶促系统合成两个靶标表位,所述酶联体系使用含有用于偶联的接头部分的修饰的二糖底物。尽管两种糖缀合物疫苗均能诱导所需的高抗Gal IgG抗体滴度,但发现该反应对所用的Galα(1,3)Galβ(1,4)GlcNAc半抗原具有极高的特异性,而与Galα( 1,3)Galβ(1,4)Glc半抗原。我们的发现表明,尽管同质的糖缀合物疫
    DOI:
    10.1039/c7ob00448f
点击查看最新优质反应信息

文献信息

  • A Sulfonamide Sialoside Analogue for Targeting Siglec-8 and -F on Immune Cells
    作者:Corwin M. Nycholat、Shiteng Duan、Eva Knuplez、Charli Worth、Mila Elich、Anzhi Yao、Jeremy O’Sullivan、Ryan McBride、Yadong Wei、Steve M. Fernandes、Zhou Zhu、Ronald L. Schnaar、Bruce S. Bochner、James C. Paulson
    DOI:10.1021/jacs.9b05769
    日期:2019.9.11
    im-munoglobulin-like cell surface receptors have emerged as attractive targets for cell directed therapies due to their restricted expression on immune cells, endocytic properties and ability to modulate receptor signaling. Human Siglec-8, for instance has been identified as a therapeutic target for the treatment of eosinophil and mast cell disorders. A promising strategy to target Sig-lecs involves the
    Siglec 家族的唾液酸结合免疫球蛋白样细胞表面受体已成为细胞定向治疗的有吸引力的靶点,因为它们在免疫细胞上的表达受限、内吞特性和调节受体信号的能力。例如,人类 Siglec-8 已被确定为治疗嗜酸性粒细胞和肥大细胞疾病的治疗靶点。靶向 Sig-lecs 的一个有前景的策略涉及使用具有多价展示 Siglec 配体的脂质体纳米颗粒。这种方法的一个关键挑战是识别目标 Siglec 的高亲和力配体。在这里,我们报告了 Siglec-8 的高亲和力配体及其最接近的鼠功能直向同源物 Siglec-F 的开发,它能够将脂质体靶向表达 Siglec-8 或 -F 的细胞。筛选了 156 个合成的 9-N-磺酰基唾液酸类似物的聚糖微阵列库,以识别潜在的先导化合物。最佳配体,9-N-(2-萘基磺酰基)-Neu5Acα2-3-[6-O-磺基]-Galβ1-4GlcNAc(6'-O-磺基NSANeu5Ac)结
  • Efficient Preparation of Natural and Synthetic Galactosides with a Recombinant β-1,4-Galactosyltransferase-/UDP-4‘-Gal Epimerase Fusion Protein
    作者:Ola Blixt、Jillian Brown、Melissa J. Schur、Warren Wakarchuk、James C. Paulson
    DOI:10.1021/jo0057809
    日期:2001.4.1
    galactose to a variety of different glucose- and glucosamine-containing acceptors, and utilizes either UDP-galactose or UDP-glucose as donor substrates. A crude lysate from Escherichia coli expressing the fusion protein is demonstrated to be sufficient for the efficient preparation of galactosylated oligosaccharides from inexpensive UDP-glucose in a multigram scale. Lysates containing the fusion protein are
    基于LacNAc的寡糖的多种生物学作用导致对生物学研究的这些结构的需求增加。在该报告中,描述了使用细菌β-4-半乳糖基转移酶/ -UDP-4'-gal-表异构酶融合蛋白合成β-半乳糖苷的有效途径。将来自脑膜炎奈瑟氏球菌的lgtB基因和来自嗜热链球菌的galE基因融合并克隆到表达载体pCW中。融合蛋白将半乳糖转移至各种不同的含葡萄糖和葡萄糖胺的受体,并利用UDP-半乳糖或UDP-葡萄糖作为供体底物。已证明表达融合蛋白的大肠杆菌的粗裂解物足以以毫克规模从廉价的UDP葡萄糖有效制备半乳糖基化的寡糖。还发现含有融合蛋白的裂解物可用于在偶联的反应混合物中产生更复杂的寡糖,例如,用于由N-乙酰基葡糖胺制备唾液酸化物。因此,细菌表达的融合蛋白非常适合于方便,经济地制备天然低聚糖和基于乳糖胺核心的合成衍生物。
  • Fluorophore-labeled, Peptide-based Glycoclusters: Synthesis, Binding Properties for Lectins, and Detection of Carbohydrate-Binding Proteins in Cells
    作者:Xizhe Tian、Jaeyoung Pai、Kyung-Hwa Baek、Sung-Kyun Ko、Injae Shin
    DOI:10.1002/asia.201100319
    日期:2011.8.1
    different spatial arrangements of the sugar ligands were prepared. Lectin‐binding properties of the glycoclusters were initially examined by using microarrays immobilized by various lectins. These glycoclusters were then employed to detect the cell‐surface carbohydratebinding proteins in bacteria. Finally, the uptake of glycoclusters by mammalian cells through receptor‐mediated endocytosis was evaluated
    描述了一种简便高效的线性合成基于线性肽的糖簇的方法,该糖簇具有各种化合价和不同的糖配体空间排列方式。合成策略包括1)固相合成荧光团标记的含炔烃的肽,2)通过点击化学将叠氮化物连接的未保护的单糖,二糖和三糖偶联到固相支持物上的炔烃偶联的肽上和3)从固相支持物中释放出荧光团标记的糖团。通过使用该方法,制得了32个荧光糖簇,其化合价为1-4,糖配体的空间排列不同。糖簇的凝集素结合特性最初是通过使用各种凝集素固定化的微阵列来检查的。然后将这些糖簇用于检测细菌中的细胞表面糖结合蛋白。最后,评估了哺乳动物细胞通过受体介导的内吞作用对糖簇的吸收。从体外和体内研究获得的结果表明,对固定蛋白和细胞表面蛋白的结合亲和力高度依赖于糖簇中糖配体的化合价和空间排列。
  • Analysis of Density-Dependent Binding of Glycans by Lectins Using Carbohydrate Microarrays
    作者:Xizhe Tian、Jaeyoung Pai、Injae Shin
    DOI:10.1002/asia.201200202
    日期:2012.9
    investigate the density‐dependent binding of glycans by lectins using carbohydrate microarrays, a number of C‐terminal hydrazide‐conjugated neoglycopeptides with various valences and different spatial arrangements of the sugar ligands were prepared on a solid support. The synthetic strategy includes (1) assembly of alkyne‐linked peptides possessing C‐terminal hydrazide on a solid support, (2) coupling of azide‐linked
    为了使用糖微阵列研究凝集素对聚糖的密度依赖性结合,在固体支持物上制备了许多具有不同化合价和不同空间排列糖配体的C末端酰肼偶联的新糖肽。合成策略包括(1)在固相支持物上组装具有C末端酰肼的炔键连接的肽,(2)利用点击化学将叠氮键连接的未保护糖与固相支持物上的炔键连接的肽偶联,和( 3)从固体支持物中释放新糖肽。通过使用这种合成方法,生成了六价的新糖肽,化合价为1-4,并且碳水化合物配体的空间排列不同。通过将制备的新糖肽固定在环氧衍生化的玻璃载玻片上来构建碳水化合物微阵列,并将其用于分析凝集素对聚糖的密度依赖性结合。结合性质测定的结果表明,凝集素结合高度依赖于表面聚糖密度。
  • Synthesis of lactosamine-based building blocks on a practical scale and investigations of their assembly for the preparation of<sup>19</sup>F-labelled LacNAc oligomers
    作者:Cecilia Romanò、Stefan Oscarson
    DOI:10.1039/c8ob03066a
    日期:——
    showed that benzylated acceptors significantly improved the yields over acetylated ones, and that, gratifyingly, the almost untried N-trifluoroacetamide (NTFAc) protected donors, already containing the desired 19F-label, were found to be optimal, both considering reaction yields and purification of the glycosylation reactions. The NTFAc group of reducing end acceptors was introduced through N-amide
    普遍存在的二糖N-乙酰乳糖胺(LacNAc 2型,Galβ1,4GlcNAc)通常在癌细胞表面上过表达,并与肿瘤分泌的半乳糖凝集素结合,从而促成与癌症相关的过程,如转移,黏附,肿瘤存活和转移。免疫逃逸。为了促进NMR研究寡聚LacNAc结构与半乳糖凝集素之间的结合相互作用,这种相互作用可以显示外结合和内结合行为,因此需要一个具有区域选择性的19 F标记的寡聚LacNAc结构的文库。这里,各种N在实际规模上的合成据报道,从市售的乳糖胺盐酸盐开始保护-保护的(Troc,Phth,TFAc)乳糖胺供体。用乳糖胺受体对其糖基化以形成含19 F的LacNAc低聚物的研究表明,苄基化的受体比乙酰化的受体显着提高了收率,令人欣喜的是,几乎未尝试的N-三氟乙酰胺(NTFAc)保护的供体已经含有所需的19 F考虑到反应产率和糖基化反应的纯化,发现-标记物是最佳的。NTFAc的还原末端受体是通过N引入的-带有
查看更多