methyl (1S,3aR,4S,7R,7aS,1'R,2'R,5'R)-1-hydroxymethyl-1-[{2'-(1''-hydroxymethylvinyl)-5'-methylcyclopentyl}methyl]-3-isopropyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene-2-carboxylate | 528878-98-0

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: methyl (1S,3aR,4S,7R,7aS,1'R,2'R,5'R)-1-hydroxymethyl-1-[{2'-(1''-hydroxymethylvinyl)-5'-methylcyclopentyl}methyl]-3-isopropyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene-2-carboxylate
• CAS: 528878-98-0
• 化学式: C₂₆H₃₈O₄
• 分子量: 414.585
• InChiKey: GCTBNKNPNXJPNV-UPMSUHOJSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.14
• 重原子数：
  30.0
• 可旋转键数：
  7.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.73
• 拓扑面积：
  66.76
• 氢给体数：
  2.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  methyl (1S,3aR,4S,7R,7aS,1'R,2'R,5'R)-1-hydroxymethyl-1-[{2'-(1''-hydroxymethylvinyl)-5'-methylcyclopentyl}methyl]-3-isopropyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene-2-carboxylate 以 邻二氯苯 为溶剂， 反应 3.0h， 以64%的产率得到methyl 17,19-dihydroxysordaric-1-en-18-oate
  参考文献：
  名称：

  Total Synthesis of Sordaricin

  摘要：

  An enantioconvergent total synthesis of sordaricin (3), the diterpene aglycon of an important class of antifungal compounds, is described. Two approaches were explored, the first of which utilized a possible biogenetic intramolecular [4 + 2] cycloaddition to form the complete carbon skeleton of the target molecule as a single regioisomer 30. A second approach employed a tandem cycloreversion/intramolecular [4 + 2] cycloaddition process to afford not only the desired product 30 but also significant quantities of the undesired regioisomer iso-30. An investigation into the reasons for the difference in regioselectivity between these two reactions revealed the intervention of a cycloreversion/cycloaddition pathway at elevated temperatures leading to the formation of iso-30. Experimental evidence supports the hypothesis that iso-30 is the more thermodynamically stable of the two regioisomers.

  DOI：

  10.1021/jo048199b
• 作为产物：
  描述：

  (1R,2R,3R)-1-异丙烯基-2-[(甲氧基甲氧基)甲基]-3-甲基环戊烷 在 咪唑 、 4-二甲氨基吡啶 、 sodium tetrahydroborate 、 丁硫醇 、 四丁基氟化铵 、 碘 、 4-甲基苯磺酸吡啶 、 sodium hydride 、 二异丁基氢化铝 、 碳酸氢钠 、 lithium cyclohexylisopropylamide 、 对甲苯磺酸 、 lithium,azanidylidenemethylidenecopper,2H-thiophen-2-ide 、 N,N-二异丙基乙胺 、 间氯过氧苯甲酸 、 三苯基膦 、 magnesium bromide 、 lithium hexamethyldisilazane 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 、 甲醇 、 乙醚 、 正己烷 、 二氯甲烷 、 N,N-二甲基甲酰胺 、 丙酮 、 乙腈 、 叔丁醇 为溶剂， 反应 125.83h， 生成 methyl (1S,3aR,4S,7R,7aS,1'R,2'R,5'R)-1-hydroxymethyl-1-[{2'-(1''-hydroxymethylvinyl)-5'-methylcyclopentyl}methyl]-3-isopropyl-3a,4,7,7a-tetrahydro-1H-4,7-methanoindene-2-carboxylate
  参考文献：
  名称：

  Total Synthesis of Sordaricin

  摘要：

  An enantioconvergent total synthesis of sordaricin (3), the diterpene aglycon of an important class of antifungal compounds, is described. Two approaches were explored, the first of which utilized a possible biogenetic intramolecular [4 + 2] cycloaddition to form the complete carbon skeleton of the target molecule as a single regioisomer 30. A second approach employed a tandem cycloreversion/intramolecular [4 + 2] cycloaddition process to afford not only the desired product 30 but also significant quantities of the undesired regioisomer iso-30. An investigation into the reasons for the difference in regioselectivity between these two reactions revealed the intervention of a cycloreversion/cycloaddition pathway at elevated temperatures leading to the formation of iso-30. Experimental evidence supports the hypothesis that iso-30 is the more thermodynamically stable of the two regioisomers.

  DOI：

  10.1021/jo048199b