(1S,3S,7S,10R,11S,12S,16S)-3-acetyl-8,8,10,12,16-pentamethyl-7,11-bis(trimethylsilyloxy)-4-oxabicyclo[14.1.0]heptadecane-5,9-dione | 1269438-85-8

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 大环内酯类和类似物
• 英文名称: (1S,3S,7S,10R,11S,12S,16S)-3-acetyl-8,8,10,12,16-pentamethyl-7,11-bis(trimethylsilyloxy)-4-oxabicyclo[14.1.0]heptadecane-5,9-dione
• CAS: 1269438-85-8
• 化学式: C₂₉H₅₄O₆Si₂
• 分子量: 554.915
• InChiKey: DOPAQRADDVUYAZ-BGVFVPGASA-N

物化性质

• 熔点：
  118-121 °C
• 沸点：
  574.6±50.0 °C(predicted)
• 密度：
  1.01±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  6.79
• 重原子数：
  37
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.9
• 拓扑面积：
  78.9
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  (1S,3S,7S,10R,11S,12S,16S)-3-acetyl-8,8,10,12,16-pentamethyl-7,11-bis(trimethylsilyloxy)-4-oxabicyclo[14.1.0]heptadecane-5,9-dione 在 正丁基锂 、 柠檬酸 作用下， 以 四氢呋喃 、 甲醇 、 甲苯 为溶剂， 反应 37.5h， 生成 (1S,3S,7S,10R,11S,12S,16S)-7,11-dihydroxy-8,8,10,12,16-pentamethyl-3-((E)-1-(pyrimidin-2-yl)prop-1-en-2-yl)-4-oxabicyclo[14.1.0]heptadecane-5,9-dione
  参考文献：
  名称：

  Stereoselective Synthesis of 12,13-Cyclopropyl-Epothilone B and Side-Chain-Modified Variants

  摘要：

  A general strategy has been devised for the stereoselective synthesis of 12,13-cyclopropyl-epothilone B and side-chain-modified variants thereof, which relies on late stage introduction of the heterocycle through Wittig olefination of ketone 14. Formation of the macrocycle was achieved through RCM-based ring closure and introduction of the cyclopropane moiety involved a highly selective Charette cyclopropanation of allylic alcohol 7.

  DOI：

  10.1021/ol200114k
• 作为产物：
  描述：

  (3S,7S,8S)-((S)-2-((1S,2S)-2-allyl-2-methylcyclopropyl)-1-(2-methyl-1,3-dioxolan-2-yl)ethyl) 3,7-bis(tert-butyldimethylsilyloxy)-4,4,6,8-tetramethyl-5-oxodec-9-enoate 在 RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 、 2,6-二甲基吡啶 、 iron(III) chloride hexahydrate 、 氢气 作用下， 以 乙醇 、 二氯甲烷 为溶剂， -78.0~20.0 ℃ 、750.01 kPa 条件下， 反应 33.5h， 生成 (1S,3S,7S,10R,11S,12S,16S)-3-acetyl-8,8,10,12,16-pentamethyl-7,11-bis(trimethylsilyloxy)-4-oxabicyclo[14.1.0]heptadecane-5,9-dione
  参考文献：
  名称：

  Stereoselective Synthesis of 12,13-Cyclopropyl-Epothilone B and Side-Chain-Modified Variants

  摘要：

  A general strategy has been devised for the stereoselective synthesis of 12,13-cyclopropyl-epothilone B and side-chain-modified variants thereof, which relies on late stage introduction of the heterocycle through Wittig olefination of ketone 14. Formation of the macrocycle was achieved through RCM-based ring closure and introduction of the cyclopropane moiety involved a highly selective Charette cyclopropanation of allylic alcohol 7.

  DOI：

  10.1021/ol200114k

文献信息

• Stereoselective Synthesis of 12,13-Cyclopropyl-Epothilone B and Side-Chain-Modified Variants
  作者：Raphael Schiess、Jürg Gertsch、W. Bernd Schweizer、Karl-Heinz Altmann

  DOI：10.1021/ol200114k

  日期：2011.3.18

  A general strategy has been devised for the stereoselective synthesis of 12,13-cyclopropyl-epothilone B and side-chain-modified variants thereof, which relies on late stage introduction of the heterocycle through Wittig olefination of ketone 14. Formation of the macrocycle was achieved through RCM-based ring closure and introduction of the cyclopropane moiety involved a highly selective Charette cyclopropanation of allylic alcohol 7.