2-azido-3,4,6-tri-O-benzyl-2-desoxy-α-D-galactopyranosylbromid | 79781-71-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2-azido-3,4,6-tri-O-benzyl-2-desoxy-α-D-galactopyranosylbromid
• 英文别名: 2-azido-3,4,6-tri-O-benzyl-2-deoxy-α-D-galactopyranosyl bromide；(2R,3R,4R,5R,6R)-3-azido-2-bromo-4,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxane
• CAS: 79781-71-8
• 化学式: C₂₇H₂₈BrN₃O₄
• 分子量: 538.441
• InChiKey: MKUWFPSOHICOLQ-SEFGFODJSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6
• 重原子数：
  35
• 可旋转键数：
  11
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  51.3
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  2-azido-3,4,6-tri-O-benzyl-2-desoxy-α-D-galactopyranosylbromid 在 4 A molecular sieve 、 sodium methylate 、 silver trifluoromethanesulfonate 、 1,1,3,3-四甲基脲 作用下， 以 甲醇 、 甲苯 为溶剂， 反应 24.0h， 生成
  参考文献：
  名称：

  Synthesis of some amino and carboxy analogs of galabiose; evaluation as inhibitors of the pilus protein PapGJ96 from Escherichia coli

  摘要：

  The 2'-amino-2'-deoxy, 6-amino-6-deoxy, and 6-carboxy analogs of the reference inhibitor 2-(trimethylsilyl)ethyl (alpha-D-galactopyranosyl)-(1-->4)-beta-D-galactopyranoside were synthesized and evaluated as inhibitors of the binding of the Escherichia coli-derived pilus protein PapG(J96), using an ELISA assay. The inhibitory efficiencies (K-rel; relative to the reference inhibitor) were: 157, 13, and < 8, respectively. The results support the previously proposed combining site model, where the protein carries a negatively charged amino acid residue near HO-2' and HO-6 of the galabioside. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0008-6215(98)00020-2
• 作为产物：
  描述：

  p-methylphenyl 2-deoxy-2-azido-1-thio-β-D-galactopyranoside 在 N-碘代丁二酰亚胺 、 草酰溴 、 sodium hydride 作用下， 以 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 15.41h， 生成 2-azido-3,4,6-tri-O-benzyl-2-desoxy-α-D-galactopyranosylbromid
  参考文献：
  名称：

  Synthesis of some amino and carboxy analogs of galabiose; evaluation as inhibitors of the pilus protein PapGJ96 from Escherichia coli

  摘要：

  The 2'-amino-2'-deoxy, 6-amino-6-deoxy, and 6-carboxy analogs of the reference inhibitor 2-(trimethylsilyl)ethyl (alpha-D-galactopyranosyl)-(1-->4)-beta-D-galactopyranoside were synthesized and evaluated as inhibitors of the binding of the Escherichia coli-derived pilus protein PapG(J96), using an ELISA assay. The inhibitory efficiencies (K-rel; relative to the reference inhibitor) were: 157, 13, and < 8, respectively. The results support the previously proposed combining site model, where the protein carries a negatively charged amino acid residue near HO-2' and HO-6 of the galabioside. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0008-6215(98)00020-2

文献信息

• 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，
• Stereoselectivity of glycosylation with derivatives of 2-azido-2-deoxy-d-galactopyranose. The synthesis of a determinant oligosaccharide related to blood-group a (type 1)
  作者：Nikolai V. Bovin、Sergei É. Zurabyan、Anatoly Ya. Khorlin

  DOI：10.1016/0008-6215(83)88263-9

  日期：1983.1

  6-tri-O-benzyl-2-deoxy-β- d -galactopyranosyl chloride (9) was found to be the most efficient glycosylating agent for the synthesis of oligosaccharides containing 2-acetamido-2-deoxy-α- d -galactopyranose residues, and gave a tetrasaccharide, which is a determinant of the blood-group A (Type 1), i.e., O-α- l -fucopyranosyl-(1→2)-[O-2-acetamido-2-deoxy-α- d - galactopyranosyl-(1→3)]-O-β- d -galactopyr

  摘要在各种条件下，研究了2-叠氮基-2-脱氧-d-吡喃半乳糖衍生物对模型醇（环己醇）的立体选择性糖基化作用。发现2-叠氮基-3,4,6-三-O-苄基-2-脱氧-β-d-吡喃半乳糖基氯（9）是用于合成含有2-acetamido-2-的寡糖的最有效的糖基化剂脱氧-α-d-吡喃半乳糖残基，得到四糖，它是A型血型（1型）的决定因素，即O-α-1-呋喃核糖基-（1→2）-[O-2-乙酰氨基-2-脱氧-α-d-吡喃半乳糖-（1→3）]-O-β-d-吡喃半乳糖-（1→3）-2-乙酰氨基-2-脱氧-d-葡萄糖及其三糖片段， O-2-乙酰氨基-2-脱氧-α-d-半乳糖吡喃糖基-（1→3）-O-β-d-吡喃半乳糖基-（1→3）-2-乙酰胺基-2-脱氧-d-葡萄糖。在这个综合过程中，
• Synthese der tetra- und trisaccharid-sequenzen von asialo-GM1 und -GM2. Lenkung der regioselektivität der glycosidierung von lactose
  作者：Hans Paulsen、Michael Paal

  DOI：10.1016/0008-6215(85)85148-x

  日期：1985.3

  Abstract A regioselective β-glycosidation of lactose derivatives unsubstituted at OH-3′ and -4′ is possible, depending on the catalyst system applied. With silver silicate or silver carbonate as catalyst under heterogeneous conditions, β-glycosidation occurred selectively at the less reactive OH-4′ group of the acceptor, whereas with trimethylsilyl triflate or soluble mercury salt as catalyst under

  摘要取决于所使用的催化剂体系，在OH-3'和-4'处未取代的乳糖衍生物的区域选择性β-糖基化是可能的。在非均相条件下用硅酸银或碳酸银作为催化剂，β-糖苷化选择性地发生在受体的反应性较低的OH-4'基上，而在均相条件下用三甲基甲硅烷基三氟甲磺酸盐或可溶性汞盐作为催化剂，则几乎只在β-糖基化发生。更具反应性的OH-3'基团。糖基供体，受体和催化剂的反应性必须适当匹配才能成功进行区域选择性偶联。这样，去唾液酸-GM 2-神经节苷脂的三糖单元，O-（2-乙酰氨基-2-脱氧-β-d-吡喃半乳糖基）-（1→4）-（β-d-吡喃半乳糖基）-（1→4 ）-d-吡喃葡萄糖和去唾液酸-GM1-神经节苷脂的四糖单元，O-（β-d-吡喃半乳糖基）-（1→3）-（2-乙酰氨基-2-脱氧-β-d-吡喃半乳糖基）-（1→4）-（β-d-吡喃半乳糖基）-（1→4合成了）-β-d-吡喃葡萄糖。这种新方法构成了神经节苷脂合成领域中非常有用的方法。
• Stereoselectivity in glycosylation by means of 2-azido-2-desoxy-D-galactopyranose derivatives and the synthesis of the determinative oligosaccharide of blood group A, type 1
  作者：N. V. Bovin、S. �. Zurabyan、A. Ya. Khorlin

  DOI：10.1007/bf00949960

  日期：1982.5
• Synthesis of blood group pentasaccharides ALey, BLey and related tri- and tetrasaccharides
  作者：Galina V. Pazynina、Svetlana V. Tsygankova、Marina A. Sablina、Alexander S. Paramonov、Andrey A. Formanovsky、Nicolai V. Bovin

  DOI：10.1016/j.mencom.2016.03.005

  日期：2016.3

  Pentasaccharides GalNAc alpha 1-3(Fuc alpha 1-2)Gal beta 1-4(Fuc alpha 1-3)-GlcNAc (ALe(y)) and Gal alpha 1-3(Fuc alpha 1-2)Gal beta 1-4(Fuc alpha 1-3)-GlcNAc (BLe(y)), as well as forms GalNAc alpha 1-3Gal beta 1-4(Fuc alpha 1-3)-GlcNAc and GalNAc alpha 1-3Ga1 beta 1-4GlcNAc were synthesized as molecular tools for studying natural antibodies directed against blood group A and B antigens.