all-trans-lutein 3-O-palmitate

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: all-trans-lutein 3-O-palmitate
• 英文别名: lutein-3-O-palmitate；[(1R)-4-[(1E,3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1R,4R)-4-hydroxy-2,6,6-trimethylcyclohex-2-en-1-yl]-3,7,12,16-tetramethyloctadeca-1,3,5,7,9,11,13,15,17-nonaenyl]-3,5,5-trimethylcyclohex-3-en-1-yl] hexadecanoate
• 化学式: C₅₆H₈₆O₃
• 分子量: 807.297
• InChiKey: MLNBLHZHPFTDGG-HFEDEYGISA-N

计算性质

• 辛醇/水分配系数(LogP)：
  18.9
• 重原子数：
  59
• 可旋转键数：
  26
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.59
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  叶黄素 、 棕榈酸 在 4-二甲氨基吡啶 、 N,N'-二环己基碳二亚胺 作用下， 以 二氯甲烷 为溶剂， 反应 4.0h， 生成 all-trans-lutein 3'-O-palmitate 、 all-trans-lutein 3-O-palmitate 、 堆心菊素
  参考文献：
  名称：

  Identification of Synthetic Regioisomeric Lutein Esters and Their Quantification in a Commercial Lutein Supplement

  摘要：

  Synthetic mixtures of 24 mono- and diesters of the asymmetric hydroxylated carotenoid lutein with lauric, myristic, palmitic, and stearic acids were analyzed by liquid chromatography-ultraviolet/visible spectroscopy (LC-UV-vis) and characterized by LC-mass spectrometry (MS) and nuclear magnetic resonance spectroscopy (NMR). These compounds were then used for identifying the composition of a commercial lutein supplement. This is the first report of chromatographic separation of mixed fatty acid lutein diesters. Preferential MS loss of fatty acids or water occurred initially at the 3'-hydroxy position in the epsilon-ionone ring and subsequently at the 3-hydroxy position in the beta-ionone ring. This selective fragmentation leads to facile assignment of the specific fatty acids to the appropriate regioisomeric ionone ring. A commercial lutein supplement contained low levels of two pairs of regioisomeric monoesters and nearly equal levels of three homogeneous diesters and five pairs of mixed diesters. Palmitic acid was the predominant fatty acid, with lower amounts of myristic, stearic, and lauric acids.

  DOI：

  10.1021/jf070357n

文献信息

• Identification of Synthetic Regioisomeric Lutein Esters and Their Quantification in a Commercial Lutein Supplement
  作者：J. Christopher Young、El-Sayed M. Abdel-Aal、Iwona Rabalski、Barbara A. Blackwell

  DOI：10.1021/jf070357n

  日期：2007.6.1

  Synthetic mixtures of 24 mono- and diesters of the asymmetric hydroxylated carotenoid lutein with lauric, myristic, palmitic, and stearic acids were analyzed by liquid chromatography-ultraviolet/visible spectroscopy (LC-UV-vis) and characterized by LC-mass spectrometry (MS) and nuclear magnetic resonance spectroscopy (NMR). These compounds were then used for identifying the composition of a commercial lutein supplement. This is the first report of chromatographic separation of mixed fatty acid lutein diesters. Preferential MS loss of fatty acids or water occurred initially at the 3'-hydroxy position in the epsilon-ionone ring and subsequently at the 3-hydroxy position in the beta-ionone ring. This selective fragmentation leads to facile assignment of the specific fatty acids to the appropriate regioisomeric ionone ring. A commercial lutein supplement contained low levels of two pairs of regioisomeric monoesters and nearly equal levels of three homogeneous diesters and five pairs of mixed diesters. Palmitic acid was the predominant fatty acid, with lower amounts of myristic, stearic, and lauric acids.