(R)-8-(((2R,3R,5R,6S)-3,5-dihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)nonanoic acid | 1355681-08-1

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (R)-8-(((2R,3R,5R,6S)-3,5-dihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)nonanoic acid
• 英文别名: (8R)-8-[(3,6-dideoxy-alpha-L-arabino-hexopyranosyl)oxy]nonanoic acid；(8R)-8-[(2R,3R,5R,6S)-3,5-dihydroxy-6-methyloxan-2-yl]oxynonanoic acid
• CAS: 1355681-08-1
• 化学式: C₁₅H₂₈O₆
• 分子量: 304.384
• InChiKey: MILZHQPVNOSJIP-WPLOAARJSA-N

物化性质

• 沸点：
  497.9±45.0 °C(Predicted)
• 密度：
  1.16±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  21
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.93
• 拓扑面积：
  96.2
• 氢给体数：
  3
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  (R)-8-(((2R,3R,5R,6S)-3,5-dihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)nonanoic acid 、 L-苯丙氨酸乙酯盐酸盐 在 O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 、 N,N-二异丙基乙胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 0.17h， 以88%的产率得到ethyl ((R)-8-(((2R,3R,5R,6S)-3,5-dihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)nonanoyl)-L-phenylalaninate
  参考文献：
  名称：

  Deep Interrogation of Metabolism Using a Pathway-Targeted Click-Chemistry Approach

  摘要：

  Untargeted metabolomics indicates that the number of unidentified small-molecule metabolites may exceed the number of protein-coding genes for many organisms, including humans, by orders of magnitude. Uncovering the underlying metabolic networks is essential for elucidating the physiological and ecological significance of these biogenic small molecules. Here we develop a click-chemistry-based enrichment strategy, DIMEN (deep interrogation of metabolism via enrichment), that we apply to investigate metabolism of the ascarosides, a family of signaling molecules in the model organism C. elegans. Using a single alkyne modified metabolite and a solid-phase azide resin that installs a diagnostic moiety for MS/MS-based identification, DIMEN uncovered several hundred novel compounds originating from diverse biosynthetic transformations that reveal unexpected intersection with amino acid, carbohydrate, and energy metabolism. Many of the newly discovered transformations could not be identified or detected by conventional LC-MS analyses without enrichment, demonstrating the utility of DIMEN for deeply probing biochemical networks that generate extensive yet uncharacterized structure space.

  DOI：

  10.1021/jacs.0c06877
• 作为产物：
  描述：

  7-溴-1-庚烯 在 甲醇 、 4-二甲氨基吡啶 、 sodium periodate 、 N-碘代丁二酰亚胺 、 三氟甲磺酸三甲基硅酯 、 ruthenium(III) chloride trihydrate 、 10 wt% Pd(OH)2 on carbon 、 水 、 氢气 、 sodium methylate 、 potassium carbonate 、 magnesium 、 sodium hydroxide 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 甲醇 、 二氯甲烷 、 1,2-二氯乙烷 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 47.08h， 生成 (R)-8-(((2R,3R,5R,6S)-3,5-dihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)nonanoic acid
  参考文献：
  名称：

  线虫信息素a虫苷的模块化和可扩展合成：引发植物防御反应的含义。

  摘要：

  已开发出一种高效，模块化的线虫信息素a虫苷合成方法，该方法突出了通过使用原酸酯化/苄基化/原酸酯重排作为关键步骤，可从市售L-鼠李糖以23％的产率对普通中间体10进行4步可扩展合成的过程。相应地合成了六种不同的scar螨。值得注意的是，生物学研究表明，ascr＃1和ascr＃18处理导致拟南芥叶片中愈伤组织的积累增加。ascr＃18还增加了与防御相关的基因（如PR1，PDF1.2，LOX2和AOS）的表达，这可能有助于增强植物的防御反应。这项研究不仅允许轻松访问1- O，2- O，4- O取代的scar虫甙，还提供了有关其在诱导植物防御反应中的生物学活性及其作用方式的宝贵见解。

  DOI：

  10.1039/d0ob00652a

文献信息

• Ascaroside activity in Caenorhabditis elegans is highly dependent on chemical structure
  作者：Kyle A. Hollister、Elizabeth S. Conner、Xinxing Zhang、Mark Spell、Gary M. Bernard、Pratik Patel、Ana Carolina G.V. de Carvalho、Rebecca A. Butcher、Justin R. Ragains

  DOI：10.1016/j.bmc.2013.07.018

  日期：2013.9

  panel of ascarosides and tested them for dauer-inducing activity. This panel includes a number of natural ascarosides that were detected in crude pheromone extract, but as yet have no assigned function, as well as many unnatural ascaroside derivatives. Most of these ascarosides, some of which have significant structural similarity to the natural dauer pheromone components, have very little dauer-inducing

  线虫秀丽隐杆线虫分泌蛔苷，3,6-双脱氧糖蛔糖的结构多样的衍生物，并将它们用于化学通讯。在高人口密度下，特定的蛔苷（统称为 dauer 信息素）会触发进入抗应激的 dauer 幼虫阶段。为了研究蛔苷的构效关系，我们合成了一组蛔苷并测试它们的诱导活性。该面板包括许多在粗信息素提取物中检测到但尚未指定功能的天然蛔苷，以及许多非天然蛔苷衍生物。大多数这些蛔苷（其中一些与天然 dauer 信息素成分具有显着的结构相似性）几乎没有诱导 dauer 的活性。
• Comparative Metabolomics Reveals Biogenesis of Ascarosides, a Modular Library of Small-Molecule Signals in <i>C. elegans</i>
  作者：Stephan H. von Reuss、Neelanjan Bose、Jagan Srinivasan、Joshua J. Yim、Joshua C. Judkins、Paul W. Sternberg、Frank C. Schroeder

  DOI：10.1021/ja210202y

  日期：2012.1.25

  In the model organism Caenorhabditis elegans, a family of endogenous small molecules, the ascarosides function as key regulators of developmental timing and behavior that act upstream of conserved signaling pathways. The ascarosides are based on the dideoxysugar ascarylose, which is linked to fatty-acid-like side chains of varying lengths derived from peroxisomal beta-oxidation. Despite the importance of ascarosides for many aspects of C. elegans biology, knowledge of their structures, biosynthesis, and homeostasis remains incomplete. We used an MS/MS-based screen to profile ascarosides in C. elegans wild-type and mutant metabolomes, which revealed a much greater structural diversity of ascaroside derivatives than previously reported. Comparison of the metabolomes from wildtype and a series of peroxisomal beta-oxidation mutants showed that the enoyl CoA-hydratase MAOC-1 serves an important role in ascaroside biosynthesis and clarified the functions of two other enzymes, ACOX-1 and DHS-28. We show that, following peroxisomal beta-oxidation, the ascarosides are selectively derivatized with moieties of varied biogenetic origin and that such modifications can dramatically affect biological activity, producing signaling molecules active at low femtomolar concentrations. Based on these results, the ascarosides appear as a modular library of small-molecule signals, integrating building blocks from three major metabolic pathways: carbohydrate metabolism, peroxisomal beta-oxidation of fatty acids, and amino acid catabolism. Our screen further demonstrates that ascaroside biosynthesis is directly affected by nutritional status and that excretion of the final products is highly selective.
• [EN] SMALL MOLECULE COMPOUNDS FOR THE CONTROL OF NEMATODES<br/>[FR] COMPOSÉS À PETITE MOLÉCULES POUR LA LUTTE CONTRE LES NÉMATODES
  申请人：THOMPSON BOYCE PLANT RES

  公开号：WO2013022985A3

  公开（公告）日：2013-07-25
• Modular and scalable synthesis of nematode pheromone ascarosides: implications in eliciting plant defense response
  作者：Shuai Ning、Lei Zhang、Jinjin Ma、Lan Chen、Guangyao Zeng、Chao Yang、Yingjun Zhou、Xiaoli Guo、Xu Deng

  DOI：10.1039/d0ob00652a

  日期：——

  lation/orthoester rearrangement as the key step. Six diverse ascarosides were synthesized accordingly. Notably, biological investigations revealed that ascr#1 and ascr#18 treatment resulted in enhanced callose accumulation in Arabidopsis leaves. And ascr#18 also increased the expression of defense-related genes such as PR1, PDF1.2, LOX2 and AOS, which might contribute to the enhanced plant defense

  已开发出一种高效，模块化的线虫信息素a虫苷合成方法，该方法突出了通过使用原酸酯化/苄基化/原酸酯重排作为关键步骤，可从市售L-鼠李糖以23％的产率对普通中间体10进行4步可扩展合成的过程。相应地合成了六种不同的scar螨。值得注意的是，生物学研究表明，ascr＃1和ascr＃18处理导致拟南芥叶片中愈伤组织的积累增加。ascr＃18还增加了与防御相关的基因（如PR1，PDF1.2，LOX2和AOS）的表达，这可能有助于增强植物的防御反应。这项研究不仅允许轻松访问1- O，2- O，4- O取代的scar虫甙，还提供了有关其在诱导植物防御反应中的生物学活性及其作用方式的宝贵见解。
• Deep Interrogation of Metabolism Using a Pathway-Targeted Click-Chemistry Approach
  作者：Jason S. Hoki、Henry H. Le、Karlie E. Mellott、Ying K. Zhang、Bennett W. Fox、Pedro R. Rodrigues、Yan Yu、Maximilian J. Helf、Joshua A. Baccile、Frank C. Schroeder

  DOI：10.1021/jacs.0c06877

  日期：2020.10.28

  Untargeted metabolomics indicates that the number of unidentified small-molecule metabolites may exceed the number of protein-coding genes for many organisms, including humans, by orders of magnitude. Uncovering the underlying metabolic networks is essential for elucidating the physiological and ecological significance of these biogenic small molecules. Here we develop a click-chemistry-based enrichment strategy, DIMEN (deep interrogation of metabolism via enrichment), that we apply to investigate metabolism of the ascarosides, a family of signaling molecules in the model organism C. elegans. Using a single alkyne modified metabolite and a solid-phase azide resin that installs a diagnostic moiety for MS/MS-based identification, DIMEN uncovered several hundred novel compounds originating from diverse biosynthetic transformations that reveal unexpected intersection with amino acid, carbohydrate, and energy metabolism. Many of the newly discovered transformations could not be identified or detected by conventional LC-MS analyses without enrichment, demonstrating the utility of DIMEN for deeply probing biochemical networks that generate extensive yet uncharacterized structure space.