(2S,3R)-3-hexadecyloxy-4,4-dimethylhex-5-ene-1,2-diol | 951388-75-3

• 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: (2S,3R)-3-hexadecyloxy-4,4-dimethylhex-5-ene-1,2-diol
• CAS: 951388-75-3
• 化学式: C₂₄H₄₈O₃
• 分子量: 384.643
• InChiKey: LRXWPMKEMGUXRJ-GOTSBHOMSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.42
• 重原子数：
  27.0
• 可旋转键数：
  20.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.92
• 拓扑面积：
  49.69
• 氢给体数：
  2.0
• 氢受体数：
  3.0

反应信息

• 作为反应物：
  描述：

  (2S,3R)-3-hexadecyloxy-4,4-dimethylhex-5-ene-1,2-diol 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 50.0h， 生成 octadecanoic acid ((2S,3R)-1-(tert-butyldiphenylsilyloxy)-3-hexadecyloxy-4,4-dimethylhex-5-en-2-yl) ester
  参考文献：
  名称：

  Synthesis of sn-1 functionalized phospholipids as substrates for secretory phospholipase A2

  摘要：

  Secretory phospholipase A2 (sPLA2) represents a family of small water-soluble enzymes that catalyze the hydrolysis of phospholipids in the sn-2 position liberating free fatty acids and lysophospholipids. Herein we report the synthesis of two new phospholipids (1 and 2) with bulky allyl-substituents attached to the sn-1 position of the glycerol backbone. The synthesis of phospholipids 1 and 2 is based upon the construction of a key aldehyde intermediate 3 which locks the stereochemistry in the sn-2 position of the final phospholipids. The aldehyde functionality serves as the site for insertion of the allyl-substituents by a zinc mediated allylation. Small unilamellar liposomes composed of phospholipids 1 and 2 were subjected to sPLA2 activity measurements. Our results show that only phospholipid 1 is hydrolyzed by the enzyme. Molecular dynamics simulations revealed that the lack of hydrolysis of phospholipid 2 is due to steric hindrance caused by the bulky side chain of the substrate allowing only limited access of water molecules to the active site.

  DOI：

  10.1016/j.chemphyslip.2006.12.006
• 作为产物：
  描述：

  1-十六烷醇 在 吡啶 、 1,8-双二甲氨基萘 、 三氟乙酸 作用下， 以 二氯甲烷 为溶剂， 反应 146.42h， 生成 (2S,3R)-3-hexadecyloxy-4,4-dimethylhex-5-ene-1,2-diol
  参考文献：
  名称：

  Synthesis of sn-1 functionalized phospholipids as substrates for secretory phospholipase A2

  摘要：

  Secretory phospholipase A2 (sPLA2) represents a family of small water-soluble enzymes that catalyze the hydrolysis of phospholipids in the sn-2 position liberating free fatty acids and lysophospholipids. Herein we report the synthesis of two new phospholipids (1 and 2) with bulky allyl-substituents attached to the sn-1 position of the glycerol backbone. The synthesis of phospholipids 1 and 2 is based upon the construction of a key aldehyde intermediate 3 which locks the stereochemistry in the sn-2 position of the final phospholipids. The aldehyde functionality serves as the site for insertion of the allyl-substituents by a zinc mediated allylation. Small unilamellar liposomes composed of phospholipids 1 and 2 were subjected to sPLA2 activity measurements. Our results show that only phospholipid 1 is hydrolyzed by the enzyme. Molecular dynamics simulations revealed that the lack of hydrolysis of phospholipid 2 is due to steric hindrance caused by the bulky side chain of the substrate allowing only limited access of water molecules to the active site.

  DOI：

  10.1016/j.chemphyslip.2006.12.006