(1S,4aS,10aR)-5,8-Dihydroxy-1-hydroxymethyl-7-isopropyl-1,4a-dimethyl-3,4,4a,9,10,10a-hexahydro-1H-phenanthren-2-one | 1062153-09-6

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 类固醇和类固醇衍生物
• 英文名称: (1S,4aS,10aR)-5,8-Dihydroxy-1-hydroxymethyl-7-isopropyl-1,4a-dimethyl-3,4,4a,9,10,10a-hexahydro-1H-phenanthren-2-one
• 英文别名: (1S,4aS,10aR)-5,8-dihydroxy-1-(hydroxymethyl)-1,4a-dimethyl-7-propan-2-yl-4,9,10,10a-tetrahydro-3H-phenanthren-2-one
• CAS: 1062153-09-6
• 化学式: C₂₀H₂₈O₄
• 分子量: 332.44
• InChiKey: YEHHOHGXSZJEBU-UIAACRFSSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  24
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.65
• 拓扑面积：
  77.8
• 氢给体数：
  3
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  (1S,4aS,10aR)-5,8-Dihydroxy-1-hydroxymethyl-7-isopropyl-1,4a-dimethyl-3,4,4a,9,10,10a-hexahydro-1H-phenanthren-2-one 在 lithium aluminium tetrahydride 、 potassium carbonate 作用下， 以 四氢呋喃 、 丙酮 为溶剂， 反应 4.0h， 生成 (+)-(1S,2S,4aS,10aR)-1,2,3,4,4a,9,10,10a-Octahydro-2-hydroxy-1-(hydroxymethyl)-1,4a-dimethyl-5,8-dimethoxy-7-isopropylphenanthrene
  参考文献：
  名称：

  Synthetic studies on diterpenoid quinones with interleukin-1 inhibitory activity. Total synthesis of (.+-.)- and (+)-triptoquinone A

  摘要：

  An efficient first total synthesis of (+/-)- and (+)-triptoquinone A (1), a novel diterpenoid quinone with significant inhibitory activity against interleukin-1 releases, has been completed. Birch reduction of tricyclic enone (+/-)-7, prepared from known 6-methoxy-2-isopropyl-1-naphthol (22), which is readily available in large quantities, was followed by immediate enolate trapping to provide silyl enol ether (+/-)-30. Compound 30 was converted into carboxylic acid (+/-)-4 via the corresponding enol triflate (+/-)-31 either by sequential palladium-catalyzed carbonylation and oxidation or by direct carboxylation. The total synthesis of (+/-)-1 was completed by oxidation of (+/-)-4 with CAN in 12 steps from 22 in 19% overall yield at best. A second, enantioselective total synthesis of (+)-1 was accomplished via (+/-)-7, which was prepared by (-)-N- [4-(trifluoromethyl)benzyl]cinchonidinium bromide (33) catalyzed asymmetric Michael reaction of 6 with ethyl vinyl ketone and a subsequent aldol condensation. The absolute structures of triptoquinone B (2) and C (3), which were isolated concomitantly with triptoquinone A from the same plant sources, were established by a series of chemical reactions based on (+)-7.

  DOI：

  10.1021/jo00081a021
• 作为产物：
  描述：

  雷藤二萜醌 B 在 sodium dithionite 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 0.5h， 生成 (1S,4aS,10aR)-5,8-Dihydroxy-1-hydroxymethyl-7-isopropyl-1,4a-dimethyl-3,4,4a,9,10,10a-hexahydro-1H-phenanthren-2-one
  参考文献：
  名称：

  Synthetic studies on diterpenoid quinones with interleukin-1 inhibitory activity. Total synthesis of (.+-.)- and (+)-triptoquinone A

  摘要：

  An efficient first total synthesis of (+/-)- and (+)-triptoquinone A (1), a novel diterpenoid quinone with significant inhibitory activity against interleukin-1 releases, has been completed. Birch reduction of tricyclic enone (+/-)-7, prepared from known 6-methoxy-2-isopropyl-1-naphthol (22), which is readily available in large quantities, was followed by immediate enolate trapping to provide silyl enol ether (+/-)-30. Compound 30 was converted into carboxylic acid (+/-)-4 via the corresponding enol triflate (+/-)-31 either by sequential palladium-catalyzed carbonylation and oxidation or by direct carboxylation. The total synthesis of (+/-)-1 was completed by oxidation of (+/-)-4 with CAN in 12 steps from 22 in 19% overall yield at best. A second, enantioselective total synthesis of (+)-1 was accomplished via (+/-)-7, which was prepared by (-)-N- [4-(trifluoromethyl)benzyl]cinchonidinium bromide (33) catalyzed asymmetric Michael reaction of 6 with ethyl vinyl ketone and a subsequent aldol condensation. The absolute structures of triptoquinone B (2) and C (3), which were isolated concomitantly with triptoquinone A from the same plant sources, were established by a series of chemical reactions based on (+)-7.

  DOI：

  10.1021/jo00081a021

文献信息

• Synthetic studies on diterpenoid quinones with interleukin-1 inhibitory activity. Total synthesis of (.+-.)- and (+)-triptoquinone A
  作者：Kozo Shishido、Kiyoto Goto、Shizuka Miyoshi、Yoshihisa Takaishi、Masayuki Shibuya

  DOI：10.1021/jo00081a021

  日期：1994.1

  An efficient first total synthesis of (+/-)- and (+)-triptoquinone A (1), a novel diterpenoid quinone with significant inhibitory activity against interleukin-1 releases, has been completed. Birch reduction of tricyclic enone (+/-)-7, prepared from known 6-methoxy-2-isopropyl-1-naphthol (22), which is readily available in large quantities, was followed by immediate enolate trapping to provide silyl enol ether (+/-)-30. Compound 30 was converted into carboxylic acid (+/-)-4 via the corresponding enol triflate (+/-)-31 either by sequential palladium-catalyzed carbonylation and oxidation or by direct carboxylation. The total synthesis of (+/-)-1 was completed by oxidation of (+/-)-4 with CAN in 12 steps from 22 in 19% overall yield at best. A second, enantioselective total synthesis of (+)-1 was accomplished via (+/-)-7, which was prepared by (-)-N- [4-(trifluoromethyl)benzyl]cinchonidinium bromide (33) catalyzed asymmetric Michael reaction of 6 with ethyl vinyl ketone and a subsequent aldol condensation. The absolute structures of triptoquinone B (2) and C (3), which were isolated concomitantly with triptoquinone A from the same plant sources, were established by a series of chemical reactions based on (+)-7.