methyl 3-azido-4,6-O-benzylidene-3-deoxy-α-D-altropyranoside | 134526-04-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃二恶英
• 英文名称: methyl 3-azido-4,6-O-benzylidene-3-deoxy-α-D-altropyranoside
• 英文别名: (2R,4aR,6S,7S,8S,8aS)-8-azido-6-methoxy-2-phenyl-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-7-ol
• CAS: 134526-04-8
• 化学式: C₁₄H₁₇N₃O₅
• 分子量: 307.306
• InChiKey: RNDFEGLTMSTFOF-JJEKRJTGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  22
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  71.5
• 氢给体数：
  1
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  methyl 3-azido-4,6-O-benzylidene-3-deoxy-α-D-altropyranoside 在 碲化氢 、 sodium tetrahydroborate 、 N-溴代丁二酰亚胺(NBS) 、 Amberlyst 15 (H+) resin 、 对甲苯磺酸 、 copper(II) sulfate 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 barium carbonate 作用下， 以 乙醇 、 水 、 1,2-二氯乙烷 、 N,N-二甲基甲酰胺 、 苯 为溶剂， 反应 9.5h， 生成 3-benzamido-3,6-dideoxy-1,2-O-isopropylidene-β-D-arabino-hexofuranos-5-ulose
  参考文献：
  名称：

  3-氨基-5-C-苯基-D-呋喃喃糖和3-氨基-5-C- [3-羧基-4-（羧甲基）-2-氧代-3-环己烯-1-基] -D-呋喃喃糖，蒽环类抗生素去甲柔红霉素合成的可能中间体。

  摘要：

  DOI：

  10.1016/0008-6215(91)84152-5
• 作为产物：
  描述：

  methyl 2,3-anhydro-4,6-O-benzilidene-α-D-mannopyranoside 在 sodium azide 、 氯化铵 作用下， 生成 methyl 3-azido-4,6-O-benzylidene-3-deoxy-α-D-altropyranoside
  参考文献：
  名称：

  亚苄基乙醛保护基作为羧酸替代物：官能化的尿酸和糖氨基酸的合成

  摘要：

  已开发出将4,6- O-亚苄基乙缩醛保护基直接氧化为C-6羧酸的方法，该方法可轻松获得大量具有重要生物学意义且具有合成挑战性的糖醛酸和糖氨基酸衍生物，且收率高。RuCl 3 -NaIO 4介导的氧化裂解方法消除了保护和脱保护步骤，并且反应在温和的条件下进行。在有效合成六碳唾液酸类似物和带有糖醛酸的二糖（包括糖胺聚糖类似物）时，利用了亚苄基乙缩醛作为羧酸的保护基和来源的双重作用。

  DOI：

  10.1002/chem.201503998

文献信息

• Inter- and intramolecular reactions of 1-deoxy-1-thio-1,6-anhydrosugars with α-diazoesters: synthesis of the tagetitoxin core by photochemical ylide rearrangement
  作者：Anne J. Price Mortimer、Julien R. H. Plet、Oluwafunsho A. Obasanjo、Nikolas Kaltsoyannis、Michael J. Porter

  DOI：10.1039/c2ob26308d

  日期：——

  intermediacy of sulfur ylides, has been proposed as a route for the synthesis of the tagetitoxin skeleton. Intermolecular reactions of such thioanhydrosugars with diazoesters afford a range of undesired products derived from the initially formed ylide, whereas use of an intramolecular process generates stable ylides which can be converted to the tagetitoxin skeleton by photo-Stevens rearrangement. Computational

  已经提出了由金属卡宾介导并通过硫酰化物的中间进行的1-脱氧-1-硫代-1,6-脱水糖的单碳环膨胀，作为合成塔格毒素框架的途径。此类硫代脱水糖与重氮酸酯的分子间反应提供了一系列源自最初形成的叶立德的不希望有的产物，而使用分子内过程会生成稳定的叶立德，这些叶立德可以通过光-史蒂文斯重排而转化为塔格毒素框架。使用密度泛函理论的计算研究表明，光化学重排可能通过均相-重组途径进行。
• [EN] AN EFFICIENT AND SCALABLE PROCESS FOR THE MANUFACTURE OF FONDAPARINUX SODIUM<br/>[FR] PROCÉDÉ EFFICACE ET EXTENSIBLE DE FABRICATION DE FONDAPARINUX SODIQUE
  申请人：RELIABLE BIOPHARMACEUTICAL CORP

  公开号：WO2013115817A1

  公开（公告）日：2013-08-08

  The present invention relates to a process for the synthesis of the Factor Xa anticoagulent Fondaparinux and related compounds. The invention relates, in addition, to efficient and scalable processes for the synthesis of various intermediates useful in the synthesis of Fondaparinux and related compounds.

  本发明涉及一种用于合成因子Xa抗凝剂Fondaparinux及相关化合物的过程。此外，该发明还涉及用于合成Fondaparinux及相关化合物的各种中间体的高效可扩展过程。
• Fluorination of 2-hydroxy-hexopyranosides by DAST: towards formyl C-glycofuranosides from equatorial-2-OH methyl hexopyranosides
  作者：Yolanda Vera-Ayoso、Pastora Borrachero、Francisca Cabrera-Escribano、Ana T. Carmona、Manuel Gómez-Guillén

  DOI：10.1016/j.tetasy.2003.11.034

  日期：2004.2

  Reaction of diversely configured and substituted, unbranched methyl D-hexopyranosides with the DAST in dichloromethane or acetonitrile led to normal substitution products and/or rearranged fluoro compounds (ring-contracted 2,5-anhydro-1-fluoro-1-I-methylhexitol derivatives, 2-methoxy-D-hexopyranosyl fluorides, and, for some 3-azido substrates, rearranged 2-azido-3-fluoro-D-hexopyranosides). When the reaction was performed in acetonitrile, the solvent participation as a nucleophile (Ritter reaction) was observed in one case. For a 2,4-unprotected 3-azido substrate, 2,3-dehydration and fluorination at C(4), the latter with epimerization, took place. F-19/H-1 and F-19/C-13 coupling constant values were systematically applied to discriminate between isomeric structures for fluorinated products, and for some, previously described, coming from five 3-branched-chain D- or L-hexopyranosides, thus discarding the previously reported structural assignment. From the synthetic point of view, the most outstanding result was the preparation of 2,5-anhydro-1-fluoro-1-O-methylhexitols, showing a latent formyl group functionality, a transformation, which was achieved in one case. A rationalization for the formation of the different types of product is also proposed. (C) 2003 Elsevier Ltd. All rights reserved.
• Benzylidene Acetal Protecting Group as Carboxylic Acid Surrogate: Synthesis of Functionalized Uronic Acids and Sugar Amino Acids
  作者：Amit Banerjee、Soundararasu Senthilkumar、Sundarababu Baskaran

  DOI：10.1002/chem.201503998

  日期：2016.1.18

  Direct oxidation of the 4,6‐O‐benzylidene acetal protecting group to C‐6 carboxylic acid has been developed that provides an easy access to a wide range of biologically important and synthetically challenging uronic acid and sugar amino acid derivatives in good yields. The RuCl3–NaIO4‐mediated oxidative cleavage method eliminates protection and deprotection steps and the reaction takes place under

  已开发出将4,6- O-亚苄基乙缩醛保护基直接氧化为C-6羧酸的方法，该方法可轻松获得大量具有重要生物学意义且具有合成挑战性的糖醛酸和糖氨基酸衍生物，且收率高。RuCl 3 -NaIO 4介导的氧化裂解方法消除了保护和脱保护步骤，并且反应在温和的条件下进行。在有效合成六碳唾液酸类似物和带有糖醛酸的二糖（包括糖胺聚糖类似物）时，利用了亚苄基乙缩醛作为羧酸的保护基和来源的双重作用。
• 3-Amino-5-C-phenyl-d-altrofuranose and 3-amino-5-C-[3-carboxy-4-(carboxymethyl)-2-oxo-3-cyclohexen-1-yl]-d-altrofuranose, possible intermediates for synthesis of the anthracycline antibiotic decilorubicin
  作者：Toshio Izawa、Yoshio Nishimura、Shinichi Kondo

  DOI：10.1016/0008-6215(91)84152-5

  日期：1991.4