(3S,4S,6S,8R,10S)-((S,3E,5Z)-6-bromo-6-cyano-1-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}hexa-3,5-dienyl) 3-(tert-butyldimethylsilyloxy)-4,6,8,10-tetramethyl-11-(tetrahydro-2H-pyran-2-yloxy)undecanoate | 935872-45-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (3S,4S,6S,8R,10S)-((S,3E,5Z)-6-bromo-6-cyano-1-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}hexa-3,5-dienyl) 3-(tert-butyldimethylsilyloxy)-4,6,8,10-tetramethyl-11-(tetrahydro-2H-pyran-2-yloxy)undecanoate
• CAS: 935872-45-0
• 化学式: C₄₇H₇₆BrNO₇Si
• 分子量: 875.112
• InChiKey: NXEJWCLWWJEYLN-BDFAICKHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  12.33
• 重原子数：
  57.0
• 可旋转键数：
  24.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.74
• 拓扑面积：
  96.24
• 氢给体数：
  0.0
• 氢受体数：
  8.0

反应信息

• 作为反应物：
  描述：

  (3S,4S,6S,8R,10S)-((S,3E,5Z)-6-bromo-6-cyano-1-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}hexa-3,5-dienyl) 3-(tert-butyldimethylsilyloxy)-4,6,8,10-tetramethyl-11-(tetrahydro-2H-pyran-2-yloxy)undecanoate 在 4-甲基苯磺酸吡啶 作用下， 以 乙醇 为溶剂， 反应 12.0h， 以91%的产率得到(3S,4S,6S,8R,10S)-((S,3E,5Z)-6-bromo-6-cyano-1-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}hexa-3,5-dienyl) 3-(tert-butyldimethylsilyloxy)-11-hydroxy-4,6,8,10-tetramethylundecanoate
  参考文献：
  名称：

  Total Synthesis of Borrelidin

  摘要：

  The total synthesis of borrelidin has been achieved. The best feature of our synthetic route is macrocyclization at C11-C12 for the construction of an 18-membered ring after esterification between two segments. A detailed examination of the macrocyclization led us to the samarium(II) iodide-mediated intramolecular Reformatsky-type reaction as the most efficient synthetic approach. The two key segments were synthesized through regioselective methylation, directed hydrogenation, stereoselective Reformatsky-type reaction, and MgBr2 center dot Et2O-mediated chelation-controlled allylation.

  DOI：

  10.1021/jo062089i
• 作为产物：
  描述：

  在 4-二甲氨基吡啶 、 lithium hydroxide 、 双氧水 、 三乙胺 作用下， 以 四氢呋喃 、 苯 为溶剂， 反应 4.5h， 生成 (3S,4S,6S,8R,10S)-((S,3E,5Z)-6-bromo-6-cyano-1-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}hexa-3,5-dienyl) 3-(tert-butyldimethylsilyloxy)-4,6,8,10-tetramethyl-11-(tetrahydro-2H-pyran-2-yloxy)undecanoate
  参考文献：
  名称：

  Total Synthesis of Borrelidin

  摘要：

  The total synthesis of borrelidin has been achieved. The best feature of our synthetic route is macrocyclization at C11-C12 for the construction of an 18-membered ring after esterification between two segments. A detailed examination of the macrocyclization led us to the samarium(II) iodide-mediated intramolecular Reformatsky-type reaction as the most efficient synthetic approach. The two key segments were synthesized through regioselective methylation, directed hydrogenation, stereoselective Reformatsky-type reaction, and MgBr2 center dot Et2O-mediated chelation-controlled allylation.

  DOI：

  10.1021/jo062089i