(1S,2R,5S,6R,7S)-2-(tert-butyldimethylsilyloxy)-7-(2-(tert-butyldiphenylsilyloxy)ethyl)-5-methyl-8-oxabicyclo[3.2.1]octane-6-carbaldehyde | 1352577-34-4

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: (1S,2R,5S,6R,7S)-2-(tert-butyldimethylsilyloxy)-7-(2-(tert-butyldiphenylsilyloxy)ethyl)-5-methyl-8-oxabicyclo[3.2.1]octane-6-carbaldehyde
• 英文别名: (1S,2R,5S,6R,7S)-2-[tert-butyl(dimethyl)silyl]oxy-7-[2-[tert-butyl(diphenyl)silyl]oxyethyl]-5-methyl-8-oxabicyclo[3.2.1]octane-6-carbaldehyde
• CAS: 1352577-34-4
• 化学式: C₃₃H₅₀O₄Si₂
• 分子量: 566.929
• InChiKey: IJLBZPXLDSWIRM-STXRUBBXSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.73
• 重原子数：
  39
• 可旋转键数：
  11
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.61
• 拓扑面积：
  44.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (1S,2R,5S,6R,7S)-2-(tert-butyldimethylsilyloxy)-7-(2-(tert-butyldiphenylsilyloxy)ethyl)-5-methyl-8-oxabicyclo[3.2.1]octane-6-carbaldehyde 在 chromium dichloride 、 (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride 、 草酰氯 、 四丁基氟化铵 、 溶剂黄146 、 二甲基亚砜 、 potassium hydroxide 、 lithium hexamethyldisilazane 作用下， 以 四氢呋喃 、 正己烷 、 二氯甲烷 、 水 为溶剂， 反应 57.83h， 生成 (5S)-3-(2-((1S,4R,5S,6S,7R)-4-(tert-butyldimethylsilyloxy)-1-methyl-7-((1E,3E)-3-methylpenta-1,3-dienyl)-8-oxabicyclo[3.2.1]octan-6-yl)ethanoyl)-5-isobutyl-1-(phenylcarbonyl)pyrrolidin-2-one
  参考文献：
  名称：

  Identification of an unexpected 2-oxonia[3,3]sigmatropic rearrangement/aldol pathway in the formation of oxacyclic rings. Total synthesis of (+)-aspergillin PZ

  摘要：

  This paper reports the first unambiguous evidence that the cascade synthesis of tetrahydrofuran-containing oxacyclic molecules depicted in Scheme 12 can take place by a 2-oxonia[3,3]sigmatropic/aldol mechanism rather than by a Prins cyclization/pinacol rearrangement sequence. The 8-oxabicyclo [3.2.1]octyl aldehyde products of this reaction, 20 and 29, were employed to complete the first total synthesis of the structurally remarkable isoindolone alkaloid (+)-aspergillin PZ (1). The lack of activity seen in two tumor cell lines for synthetic (+)-aspergillin PZ calls into question the suggestion that aspergillin PZ, like many aspochalasin diterpenes, might exhibit useful antitumor properties. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2011.09.079
• 作为产物：
  描述：

  2-((1S,4R,5S,6S,7S)-4-(tert-butyldimethylsilyloxy)-7-(hydroxymethyl)-1-methyl-8-oxabicyclo[3.2.1]octan-6-yl)ethanol 在 吡啶 、 4-二甲氨基吡啶 、 四丙基高钌酸铵 、 N-甲基吗啉氧化物 作用下， 以 二氯甲烷 为溶剂， 反应 22.12h， 生成 (1S,2R,5S,6R,7S)-2-(tert-butyldimethylsilyloxy)-7-(2-(tert-butyldiphenylsilyloxy)ethyl)-5-methyl-8-oxabicyclo[3.2.1]octane-6-carbaldehyde
  参考文献：
  名称：

  Identification of an unexpected 2-oxonia[3,3]sigmatropic rearrangement/aldol pathway in the formation of oxacyclic rings. Total synthesis of (+)-aspergillin PZ

  摘要：

  This paper reports the first unambiguous evidence that the cascade synthesis of tetrahydrofuran-containing oxacyclic molecules depicted in Scheme 12 can take place by a 2-oxonia[3,3]sigmatropic/aldol mechanism rather than by a Prins cyclization/pinacol rearrangement sequence. The 8-oxabicyclo [3.2.1]octyl aldehyde products of this reaction, 20 and 29, were employed to complete the first total synthesis of the structurally remarkable isoindolone alkaloid (+)-aspergillin PZ (1). The lack of activity seen in two tumor cell lines for synthetic (+)-aspergillin PZ calls into question the suggestion that aspergillin PZ, like many aspochalasin diterpenes, might exhibit useful antitumor properties. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2011.09.079

文献信息

• Identification of an unexpected 2-oxonia[3,3]sigmatropic rearrangement/aldol pathway in the formation of oxacyclic rings. Total synthesis of (+)-aspergillin PZ
  作者：Stephen M. Canham、Larry E. Overman、Paul S. Tanis

  DOI：10.1016/j.tet.2011.09.079

  日期：2011.12

  This paper reports the first unambiguous evidence that the cascade synthesis of tetrahydrofuran-containing oxacyclic molecules depicted in Scheme 12 can take place by a 2-oxonia[3,3]sigmatropic/aldol mechanism rather than by a Prins cyclization/pinacol rearrangement sequence. The 8-oxabicyclo [3.2.1]octyl aldehyde products of this reaction, 20 and 29, were employed to complete the first total synthesis of the structurally remarkable isoindolone alkaloid (+)-aspergillin PZ (1). The lack of activity seen in two tumor cell lines for synthetic (+)-aspergillin PZ calls into question the suggestion that aspergillin PZ, like many aspochalasin diterpenes, might exhibit useful antitumor properties. (C) 2011 Elsevier Ltd. All rights reserved.