(5S,12S)-(2E,6E,8E)-5-hydroxy-6,12-dimethyltetradecatrienal | 934243-77-3

• 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: (5S,12S)-(2E,6E,8E)-5-hydroxy-6,12-dimethyltetradecatrienal
• 英文别名: (5S,12S)-5-hydroxy-6,12-dimethyltetradeca-2E,6E,8E-trienal；(2E,5S,6E,8E,12S)-5-hydroxy-6,12-dimethyltetradeca-2,6,8-trienal
• CAS: 934243-77-3
• 化学式: C₁₆H₂₆O₂
• 分子量: 250.381
• InChiKey: LJCPHCKVNFQPJH-ADPHGDBJSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.2
• 重原子数：
  18
• 可旋转键数：
  9
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (5S,12S)-(2E,6E,8E)-5-hydroxy-6,12-dimethyltetradecatrienal 在 lutidine 、 potassium trimethylsilonate 作用下， 以 四氢呋喃 、 二氯甲烷 、 1,2-二氯乙烷 为溶剂， 反应 29.0h， 生成 (7S,14S)-8,14-dimethyl-7-<(triethylsilyl)oxy>-hexadecane-2E,4E,8E,10E-tetraenoic acid
  参考文献：
  名称：

  Total Synthesis of Papulacandin D

  摘要：

  A total synthesis of the antifungal agent papulacandin D is reported. The molecule is representative of a large class of C-aryl glycosides that exhibit significant antifungal activity. The synthetic strategy bifurcates the molecule into two nearly equal subunits, the arylglycoside and 18-carbon fatty acid side chain. The key strategic transformations are (1) the palladium catalyzed, organosilanolate-based cross-coupling of a protected glucal silanol and (2) a catalytic enantioselective allylation of a dienal using allyltrichlorosilane. The synthesis was accomplished in 31 steps overall from commercial starting materials to afford over 50 mg of the natural product.

  DOI：

  10.1021/ja070071z
• 作为产物：
  描述：

  (4RS,11S)-4-hydroxy-5,11-dimethyltrideca-1,5E,7E-triene 、 丙烯醛 在 RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 以90%的产率得到(5S,12S)-(2E,6E,8E)-5-hydroxy-6,12-dimethyltetradecatrienal
  参考文献：
  名称：

  Total Synthesis of Papulacandin D

  摘要：

  A total synthesis of the antifungal agent papulacandin D is reported. The molecule is representative of a large class of C-aryl glycosides that exhibit significant antifungal activity. The synthetic strategy bifurcates the molecule into two nearly equal subunits, the arylglycoside and 18-carbon fatty acid side chain. The key strategic transformations are (1) the palladium catalyzed, organosilanolate-based cross-coupling of a protected glucal silanol and (2) a catalytic enantioselective allylation of a dienal using allyltrichlorosilane. The synthesis was accomplished in 31 steps overall from commercial starting materials to afford over 50 mg of the natural product.

  DOI：

  10.1021/ja070071z

文献信息

• Total synthesis of (+)-papulacandin D
  作者：Scott E. Denmark、Tetsuya Kobayashi、Christopher S. Regens

  DOI：10.1016/j.tet.2010.03.093

  日期：2010.6

  A total synthesis of (+)-papulacandin D has been achieved in 31 steps, in a 9.2% overall yield from commercially available materials. The synthetic strategy divided the molecule into two nearly equal sized subunits, the spirocyclic C-arylglycopyranoside and the polyunsaturated fatty acid side-chain. The C-arylglycopyranoside was prepared in 11 steps in a 30% overall yield from triacetoxyglucal. The fatty acid side-chain was also prepared in 11 steps in a 30% overall yield from geraniol. The key strategic transformations in the synthesis are: (1) a palladium-catalyzed, organosilanolate-based cross-coupling reaction of a dimethylglucal-silanol with an electron-rich and sterically hindered aromatic iodide and (2) a Lewis-base catalyzed, enantioselective allylation reaction of a dienal and allyltrichlorosilane. A critical element in the successful execution of the synthesis was the development of a suitable protecting group strategy that satisfied a number of stringent criteria. (C) 2010 Elsevier Ltd. All rights reserved.
• Total Synthesis of Papulacandin D
  作者：Scott E. Denmark、Christopher S. Regens、Tetsuya Kobayashi

  DOI：10.1021/ja070071z

  日期：2007.3.1

  A total synthesis of the antifungal agent papulacandin D is reported. The molecule is representative of a large class of C-aryl glycosides that exhibit significant antifungal activity. The synthetic strategy bifurcates the molecule into two nearly equal subunits, the arylglycoside and 18-carbon fatty acid side chain. The key strategic transformations are (1) the palladium catalyzed, organosilanolate-based cross-coupling of a protected glucal silanol and (2) a catalytic enantioselective allylation of a dienal using allyltrichlorosilane. The synthesis was accomplished in 31 steps overall from commercial starting materials to afford over 50 mg of the natural product.