2-acetamido-1-N-acetyl-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucopyranosylamine | 71142-00-2

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 2-acetamido-1-N-acetyl-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucopyranosylamine
• 英文别名: 2-acetamido-N-acetyl-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucopyranosylamine；N-(2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucopyranosyl) acetamide；N-(2-acetamido-2-deoxy-3,4,6-tri-O-acetyl-β-D-glucopyranosyl)acetamide；N-(2-acetamido-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucopyranosyl)acetamide；1,2-Bisacetamido-3,4,6-tri-O-acetyl-1,2-dideoxy-β-D-glucopyranose；1,2-bisacetamido-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucopyranose；[(2R,3S,4R,5R,6R)-5,6-diacetamido-3,4-diacetyloxyoxan-2-yl]methyl acetate
• CAS: 71142-00-2；6205-71-6
• 化学式: C₁₆H₂₄N₂O₉
• 分子量: 388.375
• InChiKey: CSEWWRSOKTWXDF-OXGONZEZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.5
• 重原子数：
  27
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.69
• 拓扑面积：
  146
• 氢给体数：
  2
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  2-acetamido-1-N-acetyl-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucopyranosylamine 在 三乙胺 作用下， 以 甲醇 、 水 为溶剂， 反应 6.0h， 以85%的产率得到1-N-乙酰基-2-乙酰氨基-beta-吡喃葡萄糖基胺
  参考文献：
  名称：

  一些1-N-取代的2-乙酰氨基-2-脱氧-β-D-甘露糖基糖胺衍生物和相关类似物的合成和生物活性。

  摘要：

  2-乙酰氨基-2-脱氧-3,4,6-三-O的几种1-N-取代的衍生物[卤代乙酰基，甘氨酰-，（二甲基）氨基-乙酰基，叠氮基乙酰基，三氟乙酰基和三氟甲基磺酰基-] -乙酰基-β-D-吡喃葡萄糖胺（1）被合成为细胞膜糖缀合物的潜在代谢抑制剂。在体外浓度为1-0.01 mM时，发现几种完全乙酰化的衍生物可以抑制小鼠乳腺腺癌TA3，白血病L1210或白血病P-288细胞的生长。这些衍生物中的一些在O-脱乙酰基之后活性较低。其中NH2-1被OH-或OAc-1取代的类似物1在相同的电池系统上也很活跃。生长抑制活性与2-氨基-脱氧-D-葡萄糖和L-亮氨酸掺入大分子级分的抑制有关。

  DOI：

  10.1016/s0008-6215(00)85318-5
• 作为产物：
  描述：

  2-乙酰氨基-3,4,6-三-O-乙酰基-2-脱氧-Β-D-吡喃葡萄糖酰基叠氮化物 在 palladium 10% on activated carbon 、 氢气 作用下， 以 甲醇 为溶剂， 生成 2-acetamido-1-N-acetyl-3,4,6-tri-O-acetyl-2-deoxy-β-D-glucopyranosylamine
  参考文献：
  名称：

  X-Ray Crystallographic Investigation of Fully Acetylated N-(2-Deoxy-2-Acetamido-β-D-Glucopyranosyl)Alkanamides as N-Glycoprotein Linkage Region Analogs

  摘要：

  To understand the structural significance of the linkage region of N-glycoproteins, three title sugar amides have been prepared as analogs and their molecular assembly and crystal structures have been solved to explore the effect of acetyl protection and aglycon variation on the conformation, particularly of the N-glycosidic linkage. Comparative analysis of these structures with those of free sugar amides reported earlier showed that conformation of the amido aglycon moiety is not altered significantly by the masking of hydroxyl groups in the form of acetate. The bifurcated antiparallel pattern involving N-H center dot center dot center dot O and C-H center dot center dot center dot O hydrogen bonds, a hallmark of the N-glycoprotein models GlcNAc beta NHAc and GlcNAc beta Asn, is absent in all of the fully protected title alkanamides. The asymmetric unit of the tri-O-acetylated GIcNAc beta NHAc contains two different conformations, in one of which the double-pillared hydrogen bond network involving C1 and C2 acetamido groups is antiparallel, while it is parallel in the other. The co-occurrence of a molecular assembly motif- double-pillared parallel and antiparallel hydrogen bonding pattern-is hitherto unknown in the crystal structures of N-glycoprotein linkage region models and analogs.

  DOI：

  10.1080/07328303.2011.631237

文献信息

• Acidic and basic deprotection strategies of borane-protected phosphinothioesters for the traceless Staudinger ligation
  作者：Michaela Mühlberg、Da’san M.M. Jaradat、Rolf Kleineweischede、Ilona Papp、Decha Dechtrirat、Silvia Muth、Malgorzata Broncel、Christian P.R. Hackenberger

  DOI：10.1016/j.bmc.2010.04.015

  日期：2010.6.1

  The traceless Staudinger ligation has recently found various applications in the field of peptide synthesis and modification, including immobilization and cyclization strategies. In this report, we utilize the traceless Staudinger ligation in the formation of amide bonds, which allows the acquisition of acylated aminosugars and peptides as well as the cyclization of peptides. A key element in these

  最近的无痕施陶丁格连接已在肽合成和修饰领域发现了多种应用，包括固定化和环化策略。在本报告中，我们在酰胺键的形成中利用了无痕的施陶丁格连接技术，该技术可以使酰化的氨基糖和肽以及肽环化。这些合成方法中的关键要素是使用硼烷保护的膦基甲硫醇，在膦硫基硫代酸酯的合成过程中，硼烷保护的膦基甲硫醇倾向于以其未保护的形式氧化。结合硼烷保护的膦硫代磷酸酯的酸性和碱性脱保护策略，可以在叠氮化物存在下以中等至良好的总收率形成酰胺键。
• Synthesis of Glycosylamines from Glycosyl Isothiocyanates and Bis(tributyltin) Oxide
  作者：Joaquin Isac-García、Francisco G. Calvo-Flores、Fernando Hernández-Mateo、Francisco Santoyo-González

  DOI：10.1002/1099-0690(200101)2001:2<383::aid-ejoc383>3.0.co;2-n

  日期：2001.1

  The synthesis of glycopyranosylamines is described from the reaction of glycopyranosyl isothiocynates with bis(tributyltin) oxide. The method is simple and efficient allowing, under very mild conditions, the synthesis of N-acyl glycopyranosylamines in one pot. The reactions were performed using both 2-deoxy-2-iodo glycopyranosyl isothiocyanates and glycopyranosyl isothiocyanates derived from mono-

  吡喃糖基胺的合成是通过吡喃糖基异硫氰酸酯与双（三丁基锡）氧化物的反应来描述的。该方法简单有效，允许在非常温和的条件下在一锅中合成 N-酰基吡喃糖胺。使用衍生自单糖和二糖的 2-脱氧-2-碘吡喃糖基异硫氰酸酯和吡喃糖基异硫氰酸酯进行反应。当起始材料是 α-吡喃葡萄糖基衍生物时观察到异构化。该方法也已用于制备几种糖基氨基酸。
• Model studies pertaining to the hydrazinolysis of glycopeptides and glycoproteins: hydrazinolysis of the 1-N-acetyl and 1-N-(l-β-aspartyl) derivatives of 2-acetamido-2-deoxy-β-d-glucopyranosylamine
  作者：May S. Saeed、J.Michael Williams

  DOI：10.1016/s0008-6215(00)85432-4

  日期：1980.9

  Abstract The products of hydrazinolysis of the 1- N -acetyl and 1- N -( l -β-aspartyl) derivatives of 2-acetamido-2-deoxy-β- d -glucopyranosylamine could not be converted quantitatively into 2-amino-2-deoxy- d -glucose under mild conditions. Proton and 13 C-n.m.r. measurements indicated that the hydrazone of 2-amino-2-deoxy- d -glucose was a major product of the hydrazinolysis of 2-acetamido-1- N -acetyl-2-deoxy-β-

  摘要2-乙酰氨基-2-脱氧-β-d-吡喃葡萄糖胺的1-N-乙酰基和1-N-（l-β-天冬氨酰）衍生物的肼解产物不能定量地转化为2-氨基-2 -脱氧-d-葡萄糖在温和的条件下。质子和13 Cn.mr测量表明2-氨基-2-脱氧-d-葡萄糖的zone是2-乙酰氨基-1-N-乙酰基-2-脱氧-β-d-吡喃葡萄糖胺的肼解作用的主要产物。对照实验表明，乙酰肼在肼解条件下缓慢转化为4-氨基-3,5-二甲基-1,2,4-三唑，2-氨基-2-脱氧-d-葡萄糖与乙酰肼反应缓慢。在稀乙酸中。讨论了这些结果与糖肽和糖蛋白的肼解作用有关。
• Dithiasuccinoyl (Dts) amino-protecting group used in syntheses of 1,2-trans-amino sugar glycosides
  作者：Ernst Meinjohanns、Morten Meldal、Hans Paulsen、Klaus Bock

  DOI：10.1039/p19950000405

  日期：——

  N-dithiasuccinoyl protecting group was easy to remove by thiolysis using 2-sulfanylethanol or dithiothreitol or reductively using sodium boranuide, thus affording, after N-acetylation, the corresponding N-acetyl-β-D-glucosamine glycosides. It has been demonstrated that it is possible to reduce the Dts group in the presence of an azido group selectively by sodium boranuide or the Dts- and the azido group simultaneously

  具有氨基官能团的N-二硫代琥珀酰（N- Dts）保护基的合适的受保护的D-葡糖胺衍生物已经以新的替代途径应用于1，2-反式-糖基化。所述ø - （3,4,6-三- ø -乙酰基-2-脱氧-2- dithiasuccinoylamino-β- d吡喃葡萄糖基）三- chloroacetimidate 7已被用于制备相应的以良好的收率由路易斯酸促进β糖苷。所述Ñ -dithiasuccinoyl保护基团是很容易通过硫解使用2- sulfanylethanol或二硫苏糖醇或还原使用boranuide钠，从而得到去除，之后Ñ-乙酰化，相应的N-乙酰基-β - D-葡糖胺糖苷。已经证明，可以在使用叠氮基的情况下，通过硼氢化钠选择性地还原Dts基团，或者通过二硫苏糖醇通过二硫苏糖醇同时还原Dts-和叠氮基团，使用二异丙基乙胺作为催化剂。构建块的合成。Ñ α -Fmoc-SER（AC 3 -β- d -GlcNDts）-OPfp
• Versatile solid-phase thiolytic reduction of azido and N-Dts groups in the synthesis of haemoglobin (67–76) O-glycopeptides and photoaffinity labelled analogues to study glycan T-cell specificity
  作者：Ernst Meinjohanns、Morten Meldal、Teis Jensen、Ole Werdelin、Luisa Galli-Stampino、Søren Mouritsen、Klaus Bock

  DOI：10.1039/a606725e

  日期：——

  A series of O-glycosylated peptides and photoaffinity labelled glycopeptide analogues of the mouse haemoglobin-derived decapeptide Hb (67–76), VITAFNEGLK, which binds well to the MHC class II Ek molecule and is non-immunogenic in CBA/J mice, was synthesized by multiple-column peptide synthesis employing the glycosylated building blocks 1–4 and 7–21. The non-immunogenic peptide VITAFNEGLK was converted into an immunogen by introducing different tumour-associated carbohydrate moieties [β-D-GlcNAc-O -Ser/Thr, α-D-GalNAc-O-Ser/Thr (TN-antigen) core 1 (T-antigen), core 2, core 3 and core 4] to the central position Asn-72 in the decapeptide. Previous studies suggest that T cells may be capable of recognizing epitopes which are partially defined by glycans and may be in direct contact with the T-cell receptor. In order to study the specificity of glycan interactions with the T-cell receptor a series of corresponding glycopeptides labelled with 2-azidobenzamide on the carbohydrate amino function was synthesized. The glycan structure was varied with respect to O-GlcNAc, T and TN-antigen moieties and anomeric configuration. Throughout, efficient reduction of the N-dithiasuccinyl- and azido-functionality-containing building blocks 1, 2, 7, 8, 11, 12, 13, 16, 18 and 20 could be achieved either (i) in solution by utilizing simultaneous in situ reduction with Zn in THF–HOAc–Ac2O or (ii) on solid-phase upon treatment with diisopropylethylamine and an excess of dithiothreitol or α-mercapto-N-methylacetamide. N-Acetylation of the resin-bound glycopeptides furnished the O-glycopeptides 24, 25 and 31–36. No further modification of the carbohydrate moiety on the solid phase was required when utilizing the N-acetylated building blocks 3, 4, 9, 10, 14, 15, 17, 19 and 21. In addition, comparative studies with solid-phase reduction were conducted for the syntheses of the O-linked glycopeptides 24, 25 and 31–36 by employing any of the building blocks 1–4 and 7–21. The photoaffinity labelled glycopeptides 39–45 were synthesized by employing building blocks 1, 2, 7, 8 and 11–13 by reduction of azido or N-Dts functionalities by thiolysis with dithiothreitol and subsequent coupling of the activated photoaffinity label 38 to the glycanamino group of the resin-bound glycopeptides. The synthesized mucin O-glycopeptides 24, 25 and 31–36 and the photoaffinity labelled analogues 39–45 were fully characterized by 1D and 2D 1H NMR spectroscopy and by electrospray mass spectrometry.

  利用糖基化结构单元 1â4 和 7â21 通过多柱肽合成法合成了一系列 O-糖基化肽和光亲和标记的小鼠血红蛋白衍生十肽 Hb（67â76）的糖肽类似物 VITAFNEGLK，它能很好地与 MHC II 类 Ek 分子结合，并且对 CBA/J 小鼠无免疫原性。通过在十肽的中心位置 Asn-72 引入不同的肿瘤相关碳水化合物分子 [δ-D-GlcNAc-O-Ser/Thr、δ-D-GalNAc-O-Ser/Thr（TN 抗原）核心 1（T 抗原）、核心 2、核心 3 和核心 4]，将非免疫原性肽 VITAFNEGLK 转化为免疫原。 以往的研究表明，T 细胞可能能够识别部分由聚糖定义的表位，并可能与 T 细胞受体直接接触。为了研究聚糖与 T 细胞受体相互作用的特异性，我们合成了一系列在碳水化合物氨基功能上用 2- 叠氮苯甲酰胺标记的相应聚糖肽。聚糖结构随 O-GlcNAc、T 和 TN 抗原分子以及异构体构型的不同而变化。自始至终，含 N-二硫代丁二酰基和叠氮官能团的结构单元 1、2、7、8、11、12、13、16、18 和 20 都可以通过以下两种方法实现高效还原：(i) 在溶液中用 Zn 在 THFâHOAcâAc2O 中同时原位还原；或 (ii) 在固相上用二异丙基乙胺和过量的二硫苏糖醇或δ-巯基-N-甲基乙酰胺处理。对树脂结合的糖肽进行 N-乙酰化，可得到 O-糖肽 24、25 和 31â36。在使用 N-乙酰化结构单元 3、4、9、10、14、15、17、19 和 21 时，不需要在固相上进一步修饰碳水化合物分子。此外，在合成 O-连接糖肽 24、25 和 31â36 时，还进行了固相还原比较研究，采用的是 1â4 和 7â21 中的任何一种构建模块。光亲和标记的糖肽 39â45 是通过使用构建模块 1、2、7、8 和 11â13 合成的，方法是用二硫苏糖醇进行硫醇分解还原叠氮或 N-Dts 官能，然后将活化的光亲和标记 38 与树脂结合的糖肽的甘氨酸基偶联。通过一维和二维 1H NMR 光谱以及电喷雾质谱法，对合成的粘蛋白 O 型糖肽 24、25 和 31â36 以及光亲和标记的类似物 39â45 进行了全面鉴定。