(R)-β-hydroxyeicosanoic acid methyl ester | 136890-22-7

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: (R)-β-hydroxyeicosanoic acid methyl ester
• 英文别名: methyl (R)-3-hydroxyicosanoate；methyl (R)-3-hydroxyeicosanoate；D-(-)-3-Hydroxy-eicosansaeuremethylester；methyl (3R)-3-hydroxyicosanoate
• CAS: 136890-22-7
• 化学式: C₂₁H₄₂O₃
• 分子量: 342.563
• InChiKey: RVKKWZPQRLLBMT-HXUWFJFHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.3
• 重原子数：
  24
• 可旋转键数：
  19
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.95
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (R)-β-hydroxyeicosanoic acid methyl ester 在 sodium hydroxide 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 4.0h， 生成 sodium (R)-3-hydroxyicosanoate
  参考文献：
  名称：

  Synthesis and purity assessment of tetra- and pentaacyl lipid A of Chlamydia containing (R)-3-hydroxyicosanoic acid

  摘要：

  Based on structural data of lipid A from Chlamydia trachomatis strains, chemically pure tetra- and pentaacyl 1,4'-bisphosphoryl as well as the related 4'-monophosphoryl derivatives of lipid A were synthesized. (R)-3-Hydroxyicosanoic acid as a chiral constituent was prepared via Noyori-reduction of methyl-3-oxoicosanoic acid. Synthetic intermediates were O-acylated with myristoic acid residues at positions 3 and 3' and N-acylated with (R)-3-hydroxyicosanoic acid at both glucosamine units. Efficient purification methods for highly hydrophobic long-chain tri-, tetra- and pentaacyl progenitors of lipid A have been developed. Purity and homogeneity of the synthetic target compounds were confirmed by NMR and MS-data as well as a sensitive immunostaining approach. The tetra- and pentaacyl species serve as biomedical probes to investigate the endotoxic potential of chlamydial lipid A and to clarify its role in Chlamydia associated infections. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.10.017
• 作为产物：
  描述：

  3-氧代二十烷酸甲酯 在 [(S)-2,2'-双(二苯基磷)-1,1'-联萘]二氯化钌(II) 、 氢气 作用下， 以 甲醇 为溶剂， 60.0 ℃ 、8.61 MPa 条件下， 反应 44.0h， 以77%的产率得到(R)-β-hydroxyeicosanoic acid methyl ester
  参考文献：
  名称：

  Synthesis and purity assessment of tetra- and pentaacyl lipid A of Chlamydia containing (R)-3-hydroxyicosanoic acid

  摘要：

  Based on structural data of lipid A from Chlamydia trachomatis strains, chemically pure tetra- and pentaacyl 1,4'-bisphosphoryl as well as the related 4'-monophosphoryl derivatives of lipid A were synthesized. (R)-3-Hydroxyicosanoic acid as a chiral constituent was prepared via Noyori-reduction of methyl-3-oxoicosanoic acid. Synthetic intermediates were O-acylated with myristoic acid residues at positions 3 and 3' and N-acylated with (R)-3-hydroxyicosanoic acid at both glucosamine units. Efficient purification methods for highly hydrophobic long-chain tri-, tetra- and pentaacyl progenitors of lipid A have been developed. Purity and homogeneity of the synthetic target compounds were confirmed by NMR and MS-data as well as a sensitive immunostaining approach. The tetra- and pentaacyl species serve as biomedical probes to investigate the endotoxic potential of chlamydial lipid A and to clarify its role in Chlamydia associated infections. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.10.017

文献信息

• Asymmetric synthesis of long chain β-hydroxy fatty acid methyl esters as new elastase inhibitors
  作者：Belma Hasdemir、Hülya Çelik Onar、Ayşe Yusufoğlu

  DOI：10.1016/j.tetasy.2012.07.004

  日期：2012.7

  methyl esters with an even carbon chain length of 12–20 1b–5b were synthesized by three different asymmetric reduction methods I, II III from their corresponding β-keto methyl esters 1a–5a with the aim of determining their elastase activities. In method I, chiral catalyst A was prepared from chiral ligand (R)-binaphthol 1, while in method II, chiral catalyst B was synthesized from (2R,3R)-diisopropyl tartrate

  本文中，通过三种不同的不对称还原方法I，II III，由相应的β-酮甲基酯1a - 5a合成了碳链长度为12-20 1b - 5b的β-羟基甲基酯，以测定其弹性蛋白酶。活动。在方法I，手性催化剂甲从手性配体（其制备- [R ）-联萘酚1，而在方法II中，手性催化剂乙从（2合成[R，3 - [R ）-二异丙酒石酸2。手性催化剂B以前未曾用于硼烷的不对称还原或手性β-羟基甲基酯的不对称合成中。在方法III中，通过（R）-Me-CBS恶唑硼烷3催化不对称还原。在所有这些方法中，氢化物转移都是通过BH 3 ·SMe 2进行的。用方法I和（R）合成具有（S）构型的手性羟甲基酯。）-通过方法II和III进行配置。通过手性HPLC分析获得的手性羟基甲基酯的ee％值。方法I，II和III首次应用于长链β-酮甲基酯。根据反应的收率和对映体过量，根据碳链长度和手性催化剂与β-酮甲基酯的可变比例，对还原方法I，
• Oxetanone
  申请人：F. HOFFMANN-LA ROCHE AG

  公开号：EP0444482A2

  公开（公告）日：1991-09-04

  Es werden neue die Pankreaslipase hemmende Oxetanone der Formel worin Q, R¹ und R² die in der Beschreibung angegebene Bedeutung haben, offenbart, die ausgehend von entsprechenden β-Hydroxycarbonsäuren hergestellt werden.

  本发明公开了新的胰脂肪酶抑制剂氧杂环丁酮，其式中 Q、R¹ 和 R² 具有描述中给出的含义，从相应的 β-羟基羧酸开始制备。
• Verfahren zur Herstellung von Oxetanonen
  申请人：F. HOFFMANN-LA ROCHE AG

  公开号：EP0443449B1

  公开（公告）日：1997-05-21