cholesta-1,4,7-trien-3-one | 64110-20-9

• 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: cholesta-1,4,7-trien-3-one
• 英文别名: (9S,10R,13R,14R,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-6,9,11,12,14,15,16,17-octahydrocyclopenta[a]phenanthren-3-one
• CAS: 64110-20-9
• 化学式: C₂₇H₄₀O
• 分子量: 380.614
• InChiKey: XPCUENACEMALQW-JRFVBUDKSA-N

物化性质

• 沸点：
  500.7±50.0 °C(Predicted)
• 密度：
  1.01±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  7.9
• 重原子数：
  28
• 可旋转键数：
  5
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.74
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  cholesta-1,4,7-trien-3-one 在 Lindlar's catalyst 喹啉 、 碳酸氢锂 、 氢气 、 phenyltrimethylammonium tribromide 、 lithium chloride 作用下， 以 四氢呋喃 、 乙醇 、 N,N-二甲基甲酰胺 为溶剂， 25.0 ℃ 、101.33 kPa 条件下， 反应 1.77h， 生成 胆甾-4,7-二烯-3-酮
  参考文献：
  名称：

  Synthesis of a tritiated 3-dehydroecdysteroid putative precursor of ecdysteroid biosynthesis in Locusta migratoria

  摘要：

  We have synthesized a tritiated form of 14-alpha-hydroxy-5-beta-cholest-7-ene-3,6-dione (5-beta-diketol) of high specific activity (1.74 TBq/mmol) from 7-dehydrocholesterol in seven steps with stereoselective introduction of the A/B cis ring junction as the key reaction. We have examined the ability of endocrine glands (prothoracic glands) of Locusta migratoria to use this molecule as a precursor of 3-dehydroecdysone and of ecdysone biosynthesis. A very efficient conversion of 5-beta-diketol to ecdysone and to 3-dehydroecdysone was monitored, which opens up new possibilities for the understanding of the role of 3-dehydro-compounds in ecdysteroid biosynthesis.

  DOI：

  10.1016/s0040-4020(01)96161-7
• 作为产物：
  描述：

  胆甾-4,7-二烯-3-酮 在 palladium on activated charcoal sodium hydroxide 、 碳酸氢锂 、 氢气 、 phenyltrimethylammonium tribromide 、 lithium chloride 作用下， 以 四氢呋喃 、 乙醇 、 N,N-二甲基甲酰胺 为溶剂， 25.0 ℃ 、101.33 kPa 条件下， 反应 3.0h， 生成 cholesta-1,4,7-trien-3-one
  参考文献：
  名称：

  Synthesis of a tritiated 3-dehydroecdysteroid putative precursor of ecdysteroid biosynthesis in Locusta migratoria

  摘要：

  We have synthesized a tritiated form of 14-alpha-hydroxy-5-beta-cholest-7-ene-3,6-dione (5-beta-diketol) of high specific activity (1.74 TBq/mmol) from 7-dehydrocholesterol in seven steps with stereoselective introduction of the A/B cis ring junction as the key reaction. We have examined the ability of endocrine glands (prothoracic glands) of Locusta migratoria to use this molecule as a precursor of 3-dehydroecdysone and of ecdysone biosynthesis. A very efficient conversion of 5-beta-diketol to ecdysone and to 3-dehydroecdysone was monitored, which opens up new possibilities for the understanding of the role of 3-dehydro-compounds in ecdysteroid biosynthesis.

  DOI：

  10.1016/s0040-4020(01)96161-7

文献信息

• Steroid derivatives and processes of preparing same
  申请人：NISSHIN FLOUR MILLING CO., LTD.

  公开号：EP0270867B1

  公开（公告）日：1992-06-17
• Synthesis of a tritiated 3-dehydroecdysteroid putative precursor of ecdysteroid biosynthesis in Locusta migratoria
  作者：F Dolle

  DOI：10.1016/s0040-4020(01)96161-7

  日期：1991.8.19

  We have synthesized a tritiated form of 14-alpha-hydroxy-5-beta-cholest-7-ene-3,6-dione (5-beta-diketol) of high specific activity (1.74 TBq/mmol) from 7-dehydrocholesterol in seven steps with stereoselective introduction of the A/B cis ring junction as the key reaction. We have examined the ability of endocrine glands (prothoracic glands) of Locusta migratoria to use this molecule as a precursor of 3-dehydroecdysone and of ecdysone biosynthesis. A very efficient conversion of 5-beta-diketol to ecdysone and to 3-dehydroecdysone was monitored, which opens up new possibilities for the understanding of the role of 3-dehydro-compounds in ecdysteroid biosynthesis.