12-hydroxypentadcanoic acid methyl ester

• 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: 12-hydroxypentadcanoic acid methyl ester
• 英文别名: Methyl 12-hydroxypentadecanoate；methyl 12-hydroxypentadecanoate
• 化学式: C₁₆H₃₂O₃
• 分子量: 272.428
• InChiKey: YJAMPLITYRLLLN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5
• 重原子数：
  19
• 可旋转键数：
  14
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.94
• 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：

  12-hydroxypentadcanoic acid methyl ester 、 (2S)-2-(4-isobutylphenyl)-propionyl chloride 在 吡啶 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 生成 、
  参考文献：
  名称：

  Facile determination of the absolute stereochemistry of hydroxy fatty acids by GC: application to the analysis of fatty acid oxidation by a P450BM3 mutant

  摘要：

  The determination of the absolute stereochemistry of hydroxy fatty acid methyl esters as their (S)-ibuprofen esters is possible via standard gas chromatographic techniques. Analyses of various racemic and nonracemic standards and mixtures from enzymic oxidation show excellent resolution of the resultant diastereomers, with the (S,S)-diastereomers eluting first in all cases studied. The stereochemistry of the oxidation of dodecanoic acid by P450(BM3), which has not been previously reported, was determined by this method and indicated a preference for (R)-hydroxylation. The sensitivity of this technique allows the analysis of very small quantities of product, which has revealed that the oxidation of dodecanoic and hexadecanoic acids by the T268A mutant of P450(BM3) display the same stereochemical efficiency and produce (R)-hydroxy fatty acids in the same manner as wildtype P450(BM3), despite the poor coupling efficiency of these substrates. This stereochemistry implies that hydroxylation catalysed by the T268A mutant of P450(BM3) occurs through residual levels of the normal hydroxylating species. (c) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2007.01.034
• 作为产物：
  描述：

  12-羟基十二酸 在 硫酸 、 2-碘酰基苯甲酸 作用下， 以 四氢呋喃 、 二甲基亚砜 为溶剂， 反应 16.0h， 生成 12-hydroxypentadcanoic acid methyl ester
  参考文献：
  名称：

  Resin glycosides from the aerial parts of Operculina turpethum

  摘要：

  Three glycosidic acids, turpethic acids A-C, and two intact resin glycosides, turpethosides A and B, all having a common pentasaccharide moiety and 12-hydroxy fatty acid aglycones of different chain lengths, were obtained from the aerial parts of Operculina turpethum. Their structures were elucidated by spectroscopic analyses and chemical correlations. The aglycones were characterized as 12-hydroxypentadecanoic acid in two compounds, 12-hydroxyhexadecanoic acid in two other components, and 12-hydroxyheptadecanoic acid in the fifth compound, which were all confirmed by synthesis. The absolute configurations of these aglycones were all established as S by Mosher's method. These compounds represent the first examples of resin glycosides with a monohydroxylated 12-hydroxy fatty acid as an aglycone, and one compound is the first described resin glycoside having a hydroxylated C-17 fatty acid as its aglycone. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.phytochem.2012.05.010

文献信息

• Resin glycosides from the aerial parts of Operculina turpethum
  作者：Wenbing Ding、Zi-Hua Jiang、Ping Wu、Liangxiong Xu、Xiaoyi Wei

  DOI：10.1016/j.phytochem.2012.05.010

  日期：2012.9

  Three glycosidic acids, turpethic acids A-C, and two intact resin glycosides, turpethosides A and B, all having a common pentasaccharide moiety and 12-hydroxy fatty acid aglycones of different chain lengths, were obtained from the aerial parts of Operculina turpethum. Their structures were elucidated by spectroscopic analyses and chemical correlations. The aglycones were characterized as 12-hydroxypentadecanoic acid in two compounds, 12-hydroxyhexadecanoic acid in two other components, and 12-hydroxyheptadecanoic acid in the fifth compound, which were all confirmed by synthesis. The absolute configurations of these aglycones were all established as S by Mosher's method. These compounds represent the first examples of resin glycosides with a monohydroxylated 12-hydroxy fatty acid as an aglycone, and one compound is the first described resin glycoside having a hydroxylated C-17 fatty acid as its aglycone. (C) 2012 Elsevier Ltd. All rights reserved.
• Facile determination of the absolute stereochemistry of hydroxy fatty acids by GC: application to the analysis of fatty acid oxidation by a P450BM3 mutant
  作者：Max J. Cryle、James J. De Voss

  DOI：10.1016/j.tetasy.2007.01.034

  日期：2007.3

  The determination of the absolute stereochemistry of hydroxy fatty acid methyl esters as their (S)-ibuprofen esters is possible via standard gas chromatographic techniques. Analyses of various racemic and nonracemic standards and mixtures from enzymic oxidation show excellent resolution of the resultant diastereomers, with the (S,S)-diastereomers eluting first in all cases studied. The stereochemistry of the oxidation of dodecanoic acid by P450(BM3), which has not been previously reported, was determined by this method and indicated a preference for (R)-hydroxylation. The sensitivity of this technique allows the analysis of very small quantities of product, which has revealed that the oxidation of dodecanoic and hexadecanoic acids by the T268A mutant of P450(BM3) display the same stereochemical efficiency and produce (R)-hydroxy fatty acids in the same manner as wildtype P450(BM3), despite the poor coupling efficiency of these substrates. This stereochemistry implies that hydroxylation catalysed by the T268A mutant of P450(BM3) occurs through residual levels of the normal hydroxylating species. (c) 2007 Elsevier Ltd. All rights reserved.