8-octanoic acid | 173068-03-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并恶二唑类
• 英文名称: 8-octanoic acid
• 英文别名: 8-((7-nitrobenzo[c][1,2,5]oxadiazol-4-yl)amino)octanoic acid；8-(7-Nitrobenzo[1,2,5]oxadiazol-4-ylamino)octanoic acid；8-[(4-nitro-2,1,3-benzoxadiazol-7-yl)amino]octanoic acid
• CAS: 173068-03-6
• 化学式: C₁₄H₁₈N₄O₅
• 分子量: 322.321
• InChiKey: XSRSUYLYXNYHAB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  23
• 可旋转键数：
  9
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  134
• 氢给体数：
  2
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  8-octanoic acid 在 N,N-二异丙基乙胺 、 N,N'-二环己基碳二亚胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 96.0h， 生成 S-β-D-glucopyranosyl-(1<*>1)-(2R,3R,4E)-3-hydroxy-2-<8-N-(7-nitrobenz-1,3-diazol-2-oxa-4-yl)amino>octanamido-4-octadecen-1-thiol
  参考文献：
  名称：

  Synthesis of fluorescent and radioactive analogues of two lactosylceramides and glucosylceramide containing β-thioglycosidic bonds that are resistant to enzymatic degradation

  摘要：

  Condensation of 2-S-(2,3,4,6-tetra-O-acetyl-beta-D-galactopyranosyl)-2-thiopseudourea hydrobromide with 2,3,6-tri-O-benzoyl-4-O-trifluoromethylsulfonyl-beta-D-galactopyranosy-(1-->1)-(2S,3R,4E)-3-O-benzoyl-2-dichloroacetamido-4-octadecan afforded S-(2,3,4,6-tetra-O-acetyl-beta-D-galactopyranosyl)-(1-->4)-2,3,6-tri-O-benzoyl-4-thio-beta-D-glucopyranosyl-(1-->1)-(2S, 3R,4E)-3-O-benzoyl-2-dichloroacetamido-4 in good yield. Removal of the protecting groups, followed by selective N-acylation of the sphingosine amino group with either a fluorescent or a radioactive fatty acid, gave labeled lactosylceramide analogues in good yield. Since these products contained a beta-thioglycosidic bond between the two sugar moieties, they were totally resistant to the action of acid lysosomal glycosidases. Likewise, condensation of 2-S(2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosy hydrobromide and 2,3,4,6-tetra-O-acetyl-beta-D-galactopyranosyl-(1-->4)-2,3,6-tri-O- acetyl-1-S-acetyl-1-thio-beta-D-glucopyranose with (2R,3R,4E)-3-O-benzoyl-2-dichloroacetamido-1-iodo-4-octadecen-3-ol in methanolic sodium acetate afforded the corresponding beta-thioglycosides 14 and 16, respectively, in good yield. These beta-thioglycosides were converted into glucosylceramide and lactosylceramide analogues following removal of the protecting groups and by subsequent selective N-acylation using either a fluorescent or radioactive fatty acid N-succinimidyl ester. Whereas the glucosylthioceramides thus obtained proved to be completely undegradable by lysosomal glucocerebrosidase, the lactosylceramides containing the beta-thioglycosidic bond between the lactose and the ceramide residues could be degraded by lysosomal GM1-beta-galactosidase to give the corresponding glucosylthioceramides. These compounds did not yield to any further enzymatic degradation.

  DOI：

  10.1016/0008-6215(95)00189-z
• 作为产物：
  描述：

  8-氨基辛酸 、 4-氯-7-硝基苯并-2-氧杂-1,3-二唑 在 碳酸氢钠 作用下， 以 甲醇 为溶剂， 反应 3.0h， 以48%的产率得到8-octanoic acid
  参考文献：
  名称：

  人血清白蛋白中单个高亲和力脂肪酸结合位点的鉴定和表征

  摘要：

  使用NBD（7-硝基苯-2-氧杂-1,3-二氮杂-4-基）-C 12鉴定并鉴定了重要的人类转运蛋白血清白蛋白（HSA）中的单个高亲和力脂肪酸结合位点12脂肪酸。该配体在其HSA复合物中具有1：1的化学计量比，具有很高的位点特异性。复杂的解离常数是通过滴定实验以及放射性平衡透析确定的。与已知的HSA结合药物华法林和布洛芬的竞争实验证实，新的结合位点与Sudlow位置I和II不同。这些结合研究扩展到其他白蛋白结合剂和脂肪酸衍生物。此外，X射线晶体结构允许在HSA子域IIA中定位结合位点。关于这个新的HSA位点的知识对于药物库开发和理解药物-蛋白质相互作用将是重要的，这是调节药物药代动力学的重要先决条件。

  DOI：

  10.1002/anie.201710437

文献信息

• Fluorescence-Labelled Fatty Acids and Uses Thereof
  申请人：SANOFI

  公开号：US20150285812A1

  公开（公告）日：2015-10-08

  The present invention relates to a composition comprising (i) a fluorescent-labelled fatty acid and (ii) a fatty acid binding compound, wherein (a) the fatty acid component of the fluorescent-labelled fatty acid binds the fatty acid binding compound and (b) the fluorescent component of the fluorescent-labelled fatty acid and the fatty acid binding compound interact to elicit FRET (Förster resonance energy transfer) effects. Moreover, the invention is directed to a method for identifying and/or characterizing a compound of interest by contacting a fluorescent-labelled fatty acid with a fatty acid binding compound under conditions that allow for binding and for FRET (Förster resonance energy transfer) effects, and then contacting the fluorescent-labelled fatty acid bound to the fatty acid binding compound with a compound of interest and determining the change in fluorescence. In addition, the invention pertains to corresponding kits of parts and uses of the compositions and methods.

  本发明涉及一种组合物，包括（i）一种荧光标记的脂肪酸和（ii）一种脂肪酸结合化合物，其中（a）荧光标记的脂肪酸的脂肪酸成分结合脂肪酸结合化合物，（b）荧光标记的脂肪酸的荧光成分和脂肪酸结合化合物相互作用，以引发FRET（Förster共振能量转移）效应。此外，本发明还涉及一种方法，通过在允许结合和FRET（Förster共振能量转移）效应的条件下，将荧光标记的脂肪酸与脂肪酸结合化合物接触，然后将荧光标记的脂肪酸与感兴趣的化合物结合，并测定荧光的变化来识别和/或表征感兴趣的化合物。此外，本发明还涉及相应的部件套件和组合物和方法的用途。
• Synthesis, Optical Properties, and Antiproliferative Evaluation of NBD-Triterpene Fluorescent Probes
  作者：Marta Medina-O’Donnell、Karina Vega-Granados、Antonio Martinez、M. Rosario Sepúlveda、José Antonio Molina-Bolívar、Luis Álvarez de Cienfuegos、Andres Parra、Fernando J. Reyes-Zurita、Francisco Rivas

  DOI：10.1021/acs.jnatprod.2c00880

  日期：2023.1.27

  A fluorescent labeling protocol for hydroxylated natural compounds with promising antitumor properties has been used to synthesize, in yields of 72–86%, 12 derivatives having fluorescent properties and biological activity. The reagent used for the synthesis of these fluorescent derivatives was 7-nitrobenzo-2-oxa-1,3-diazole chloride (NBD-Cl). The linkers employed to bind the NBD-Cl reagent to the natural

  具有良好抗肿瘤特性的羟基化天然化合物的荧光标记方案已被用于合成 12 种具有荧光特性和生物活性的衍生物，收率达 72-86%。用于合成这些荧光衍生物的试剂是7-硝基苯并-2-氧杂-1,3-氯化二唑(NBD-Cl)。用于将 NBD-Cl 试剂与天然化合物结合的接头是不同链长的 ω-氨基酸 (Aa)。选择的天然三萜化合物是齐墩果酸和山楂酸，作为它们相应的28-苄基化衍生物。因此，与三种非肿瘤细胞系（HPF）相比，我们研究了 12 种 NBD-Aa-三萜缀合物的光学荧光特性及其在三种癌细胞系（B16-F10、HT-29 和 HepG2）中抗细胞增殖的生物活性。 、IEC-18 和 WRL68）来自不同的组织。荧光研究的结果表明，最好的荧光标记是那些ω-氨基酸链较短且羧基未被苄基化的标记。共聚焦显微镜分析表明，这些化合物迅速融入所有三种癌细胞系的细胞中，这些相同的衍生物对测试的癌细胞系表现出最高的毒性。然后，这些
• [EN] FLUORESCENCE-LABELLED FATTY ACIDS AND USES THEREOF<br/>[FR] ACIDES GRAS MARQUÉS PAR FLUORESCENCE ET LEURS UTILISATIONS
  申请人：SANOFI SA

  公开号：WO2014037394A1

  公开（公告）日：2014-03-13

  The present invention relates to a composition comprising (i) a fluorescent-labelled fatty acid and (ii) a fatty acid binding compound, wherein (a) the fatty acid component of the fluorescent- labelled fatty acid binds the fatty acid binding compound and (b) the fluorescent component of the fluorescent-labelled fatty acid and the fatty acid binding compound interact to elicit FRET (Förster resonance energy transfer) effects. Moreover, the invention is directed to a method for identifying and/or characterizing a compound of interest by contacting a fluorescent-labelled fatty acid with a fatty acid binding compound under conditions that allow for binding and for FRET (Förster resonance energy transfer) effects, and then contacting the fluorescent-labelled fatty acid bound to the fatty acid binding compound with a compound of interest and determining the change in fluorescence. In addition, the invention pertains to corresponding kits of parts and uses of the compositions and methods.