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ethyl 2-azido-2-deoxy-1-thio-β-D-galactopyranoside | 110825-39-3

中文名称
——
中文别名
——
英文名称
ethyl 2-azido-2-deoxy-1-thio-β-D-galactopyranoside
英文别名
Ethyl-2-azido-2-desoxy-1-thio-β-D-galactopyranosid;2-azido-2-deoxy-1-thio-β-D-galactopyranoside;(2R,3R,4R,5R,6S)-5-azido-6-ethylsulfanyl-2-(hydroxymethyl)oxane-3,4-diol
ethyl 2-azido-2-deoxy-1-thio-β-D-galactopyranoside化学式
CAS
110825-39-3
化学式
C8H15N3O4S
mdl
——
分子量
249.291
InChiKey
AYRZSNUFRWMSGE-CBQIKETKSA-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):
    0.7
  • 重原子数:
    16
  • 可旋转键数:
    4
  • 环数:
    1.0
  • sp3杂化的碳原子比例:
    1.0
  • 拓扑面积:
    110
  • 氢给体数:
    3
  • 氢受体数:
    7

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

  • 作为反应物:
    描述:
    ethyl 2-azido-2-deoxy-1-thio-β-D-galactopyranoside吡啶三氟甲磺酸三甲基硅酯 作用下, 以 二氯甲烷 为溶剂, 反应 39.0h, 生成 Ethyl-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-(1->3)-2-azido-4,6-di-O-benzoyl-2-desoxy-1-thio-β-D-galactopyranosid
    参考文献:
    名称:
    Paulsen, Hans; Rauwald, Wolfgang; Weichert, Udo, Liebigs Annalen der Chemie, 1988, p. 75 - 86
    摘要:
    DOI:
  • 作为产物:
    描述:
    Ethyl-3,4,6-tri-O-acetyl-2-azido-2-desoxy-1-thio-β-D-galactopyranosid 在 sodium methylate 作用下, 以 甲醇 为溶剂, 生成 ethyl 2-azido-2-deoxy-1-thio-β-D-galactopyranoside
    参考文献:
    名称:
    通过1,6-脱水-N-乙酰基-β-D-葡糖胺合成A(2型)和B(2型)血型四糖的革兰氏合成法。
    摘要:
    从3-O-苯甲酰基-1,6-脱水-N-乙酰基葡糖胺开始,提出了以3-氨基丙基糖苷形式的A(2型)和B(2型)四糖的革兰氏合成。其半乳糖基化,然后再保护,得到具有单个游离2'-OH基团的乳糖胺衍生物,总产率为75%。标准岩藻糖基化和下一轮再保护的总产率为88%,得到具有单个游离3'-OH基团的三糖Fuc-Gal-anhydroGlcNAc。其标准的α-半乳糖基化得到保护的B(2型)四糖。为了合成对应的A四糖,测试了七个不同的2-叠氮基-2-脱氧半乳糖基(GalN3)供体:6-O-乙酰基-3,4-O-异亚丙基-GalN3硫代糖苷提供了最佳收率(89%),立体选择性(α/β= 24:1)。进一步打开1,6-脱水循环,
    DOI:
    10.1016/j.carres.2017.06.014
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文献信息

  • Synthesis of 6-PEt<i>N</i>-α-D-Gal<i>p</i>NAc-(1–&gt;6)-β-D-Gal<i>p</i>-(1–&gt;4)-β-D-Glc<i>p</i>NAc-(1–&gt;3)-β-D-Gal<i>p</i>-(1–&gt;4)-β-D-Glc<i>p</i>, a <i>Haemophilus influenzae</i> lipopolysacharide structure, and biotin and protein conjugates thereof
    作者:Andreas Sundgren、Martina Lahmann、Stefan Oscarson
    DOI:10.3762/bjoc.6.80
    日期:——

    Background: In bacteria with truncated lipopolysaccharide structures, i.e., lacking the O-antigen polysaccharide part, core structures are exposed to the immune system upon infection and thus their use as carbohydrate surface antigens in glycoconjugate vaccines can be considered and investigated. One such suggested structure from Haemophilus influenzae LPS is the phosphorylated pentasaccharide 6-PEtN-α-D-GalpNAc-(1→6)-β-D-Galp-(1→4)-β-D-GlcpNAc-(1→3)-β-D-Galp-(1→4)-β-D-Glcp.

    Results: Starting from a spacer-containing lactose derivative a suitably protected lacto-N-neotetraose tetrasaccharide structure was constructed through subsequential couplings with two thioglycoside donors, a glucosamine residue followed by a galactose derivative, using NIS/AgOTf as promoter. Removal of a silyl protecting group at the primary position of the non-reducing end residue afforded an acceptor to which the terminal α-galactosamine moiety was introduced using a 2-azido bromo sugar and halide assisted coupling conditions. Global deprotection afforded the non-phosphorylated target pentasaccharide, whereas removal of a silyl group from the primary position of the non-reducing end residue produced a free hydroxy group which was phosphorylated using H-phosphonate chemistry to yield the phosphoethanolamine-containing protected pentasaccharide. Partial deprotection afforded the phosphorylated target pentasaccharide with a free spacer amino group but with a protected phosphoethanolamino group. Conjugation of the spacer amino group to biotin or dimethyl squarate followed by deprotection of the phosphoethanolamino group and, in the case of the squarate derivative, further reaction with a protein then afforded the title conjugates.

    Conclusion: An effective synthesis of a biologically interesting pentasaccharide structure has been accomplished. The target pentasaccharide, an α-GalNAc substituted lacto-N-neotetraose structure, comprises a phosphoethanolamine motif and a spacer aglycon. Through the spacer, biotin and protein conjugates of the title compound have been constructed to allow further use in biological experiments.

    背景:在缺少O抗原多糖部分的细菌中,核心结构暴露在感染时免疫系统中,因此可以考虑和研究它们作为糖基共轭疫苗中的碳水化合物表面抗原。一种来自流感嗜血杆菌LPS的建议结构是磷酸化的五糖基6-PEtN-α-D-GalpNAc-(1→6)-β-D-Galp-(1→4)-β-D-GlcpNAc-(1→3)-β-D-Galp-(1→4)-β-D-Glcp。 结果:从含间隔的乳糖衍生物开始,通过使用NIS/AgOTf作为促进剂,使用两个硫代糖苷供体(葡萄糖胺残基和半乳糖衍生物)进行连续耦合,构建了一个合适的保护的乳糖-N-新四糖四糖结构。去除非还原末端残基的硅保护基,得到一个受体,通过使用2-叠氮基溴糖和卤化物辅助耦合条件,引入了末端α-半乳糖胺基团。全局去保护后得到非磷酸化的目标五糖基,而从非还原末端残基中去除硅基团产生了一个自由的羟基,使用H-膦酸酯化学将其磷酸化,得到含磷酸乙醇胺的保护五糖基。部分去保护后得到含自由间隔氨基团但保护的磷酸乙醇胺基团的磷酸化目标五糖基。将间隔氨基团与生物素或二甲基方酸结合,去除磷酸乙醇胺基团并在二甲基方酸衍生物的情况下进一步与蛋白质反应,得到了标题共轭物。 结论:已成功合成了一种具有生物学意义的五糖基结构。目标五糖基是一种α-GalNAc取代的乳糖-N-新四糖结构,包括一个磷酸乙醇胺基团和一个间隔糖基。通过间隔糖基,构建了标题化合物的生物素和蛋白质共轭物,以便在生物实验中进一步使用。
  • Syntheses of Anomerically Phosphodiester-Linked Oligomers of the Repeating Units of the <i>Haemophilus </i><i>i</i><i>nfluenzae</i> Types c and f Capsular Polysaccharides
    作者:Jonas Hansson、Per J. Garegg、Stefan Oscarson
    DOI:10.1021/jo001302m
    日期:2001.9.1
    trimers of the repeating units of the capsular polysaccharide of Haemophilus influenzae type c, -4)-3-O-Ac-beta-D-GlcpNAc-(1-->3)-alpha-D-Galp-(1-OPO(3-)-, and type f, -3)-beta-D-GalpNAc-(1-->4)-3-O-Ac-alpha-D-GalpNAc-(1-OPO(3-)-, have been synthesized for use in immunological studies. H-Phosphonate chemistry was used for the formation of the interglycosidic phosphate diester linkages. Two types of building
    通过从α/β混合物中结晶前体半缩醛的纯α-异头物结晶,在c型中形成α-连接的单酯H-膦酸酯的立体特异性是可能的,而在f型中,半缩醛的分离是直接分离的α-异头物。随后使用三咪唑基膦进行膦酰化而不进行异构化。使用新戊酰氯作为偶联剂,进行异头磷酸二酯键的形成,然后对形成的二酯H-膦酸酯进行I(2)/ H(2)O氧化。原始实验完全没有提供二酯产物,但是优化氧化条件(降低温度和在加入I(2)之前用吡啶稀释)可以得到良好的二聚体收率(71%和81%),随后,除去二聚体中的临时甲硅烷基保护基团后,三聚体的收率合理(36%和37%),并伴随着二聚体磷酸酯键的水解。通过催化氢解的一步脱保护有效地提供了目标二聚体(30和36)和三聚体结构(32和39)。合成方案允许进一步延伸以得到更高的低聚物。
  • Facile preparation of glycosyl donors for oligosaccharide synthesis: 2-azido-2-deoxyhexopyranosyl building blocks
    作者:Therese Buskas、Per J. Garegg、Peter Konradsson、Jean-Luc Maloisel
    DOI:10.1016/s0957-4166(00)86294-1
    日期:1994.11
    Facile routes to the 2-azido-2-deoxy-1-thioglycosides 6, 7, 15, and 18 and of the 2-azido-2-deoxy-4-pentenoglycoside 11, are described. These are useful intermediates for the synthesis of oligo-saccharides containing alpha-D-2-amino-2-deoxy (or 2-acetamido-2-deoxy) hexosyl residues in the galacto-, gluco-, and manno- series.
  • PAULSEN, HANS;RAUWALD, WOLFGANG;WEICHERT, UDO, LIEBIGS ANN. CHEM.,(1988) N 1, 75-86
    作者:PAULSEN, HANS、RAUWALD, WOLFGANG、WEICHERT, UDO
    DOI:——
    日期:——
  • Gram scale synthesis of A (type 2) and B (type 2) blood group tetrasaccharides through 1,6-anhydro-N-acetyl-β-D-glucosamine
    作者:Tatiana V. Tyrtysh、Elena Yu. Korchagina、Ivan M. Ryzhov、Nicolai V. Bovin
    DOI:10.1016/j.carres.2017.06.014
    日期:2017.9
    Fuc-Gal-anhydroGlcNAc with single free 3'-OH group. Its standard α-galactosylation gave protected B (type 2) tetrasaccharide. For synthesis of correspondent A tetrasaccharide seven different 2-azido-2-deoxygalactosyl (GalN3) donors were tested: 6-O-acetyl-3,4-O-isopropylidene-GalN3 thioglycoside was shown to provide the best yield (89%) and stereoselectivity (α/β = 24:1). Further 1,6-anhydro cycle opening
    从3-O-苯甲酰基-1,6-脱水-N-乙酰基葡糖胺开始,提出了以3-氨基丙基糖苷形式的A(2型)和B(2型)四糖的革兰氏合成。其半乳糖基化,然后再保护,得到具有单个游离2'-OH基团的乳糖胺衍生物,总产率为75%。标准岩藻糖基化和下一轮再保护的总产率为88%,得到具有单个游离3'-OH基团的三糖Fuc-Gal-anhydroGlcNAc。其标准的α-半乳糖基化得到保护的B(2型)四糖。为了合成对应的A四糖,测试了七个不同的2-叠氮基-2-脱氧半乳糖基(GalN3)供体:6-O-乙酰基-3,4-O-异亚丙基-GalN3硫代糖苷提供了最佳收率(89%),立体选择性(α/β= 24:1)。进一步打开1,6-脱水循环,
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