3-acetoxyestra-1,3,5(10)-trien-6-one | 22838-01-3

• 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: 3-acetoxyestra-1,3,5(10)-trien-6-one
• 英文别名: 3-Acetoxy-Δ^1,3,5(10)-oestratrien-6-on；[(8S,9S,13S,14S)-13-methyl-6-oxo-8,9,11,12,14,15,16,17-octahydro-7H-cyclopenta[a]phenanthren-3-yl] acetate
• CAS: 22838-01-3
• 化学式: C₂₀H₂₄O₃
• 分子量: 312.409
• InChiKey: YLFVYSAUUSVIOI-HBXLWWENSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.6
• 重原子数：
  23
• 可旋转键数：
  2
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  3-acetoxyestra-1,3,5(10)-trien-6-one 在 吡啶 、 sodium hydroxide 、 sodium tetrahydroborate 、 三氧化硫 作用下， 以 吡啶 、 甲醇 、 二氯甲烷 为溶剂， 反应 7.17h， 生成 6β-acetoxy-3-methoxyestra-1,3,5(10)-triene
  参考文献：
  名称：

  Synthesis and mechanism of hydrolysis of estrogen 6-sulfates: Model compounds for demonstrating the carcinogenesis of estrogen

  摘要：

  To investigate the carcinogenesis of estrogen with respect to the chemical behavior of estrogen 6-sulfates, two epimeric 6-sulfates, pyridinium 3-methoxyestra-1,3,5(10)-trien-6 alpha-yl (8) and -6 beta-yl (11) sulfates, were synthesized as the model compounds, and their chemical reactivities were examined. These sulfates were shown to be highly reactive: in water, they were readily and quantitatively converted to a common product mixture, composed of 3-methoxyestra-1,3,5(10)-trien-6 alpha-ol (6) and -6 beta-ol (9) in an almost constant product ratio, with a predominant yield of the latter. The hydrolysis of both sulfates 8 and 11 proceeded in first-order kinetics with half-lives of 1.1 and 1.5 minutes, respectively. When the sulfates were hydrolyzed in 18O-water, the heavy-oxygen atom was shown to be incorporated quantitatively into the C-6 position of the products. These results demonstrate that estrogen 6-sulfates generate a highly reactive benzylic (C-6) carbocation in an aqueous solution, suggesting that the sulfates can act as carcinogens.

  DOI：

  10.1016/0039-128x(91)90078-a
• 作为产物：
  描述：

  3-acetoxyestra-1,3,5(10)-triene 在 3,5-二甲基吡唑 、 chromium(VI) oxide 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 生成 3-acetoxyestra-1,3,5(10)-trien-6-one
  参考文献：
  名称：

  Synthesis and mechanism of hydrolysis of estrogen 6-sulfates: Model compounds for demonstrating the carcinogenesis of estrogen

  摘要：

  To investigate the carcinogenesis of estrogen with respect to the chemical behavior of estrogen 6-sulfates, two epimeric 6-sulfates, pyridinium 3-methoxyestra-1,3,5(10)-trien-6 alpha-yl (8) and -6 beta-yl (11) sulfates, were synthesized as the model compounds, and their chemical reactivities were examined. These sulfates were shown to be highly reactive: in water, they were readily and quantitatively converted to a common product mixture, composed of 3-methoxyestra-1,3,5(10)-trien-6 alpha-ol (6) and -6 beta-ol (9) in an almost constant product ratio, with a predominant yield of the latter. The hydrolysis of both sulfates 8 and 11 proceeded in first-order kinetics with half-lives of 1.1 and 1.5 minutes, respectively. When the sulfates were hydrolyzed in 18O-water, the heavy-oxygen atom was shown to be incorporated quantitatively into the C-6 position of the products. These results demonstrate that estrogen 6-sulfates generate a highly reactive benzylic (C-6) carbocation in an aqueous solution, suggesting that the sulfates can act as carcinogens.

  DOI：

  10.1016/0039-128x(91)90078-a

文献信息

• Aromatic steroids. Part II. Chromium trioxide oxidation of some oestra-1,3,5(10)-trienes
  作者：R. C. Cambie、Valerie F. Carlisle、C. J. Le Quesne、T. D. R. Manning

  DOI：10.1039/j39690001234

  日期：——

  The effect of varying the position and nature of aryl substituents on the oxidation of oestra-1,3,5(10)-trienes with chromium trioxide has been examined. The deshielding effect of a C-6 keto-group is discussed.

  已经研究了改变芳基取代基的位置和性质对三氧化铬氧化oestra-1,3,5（10）-三烯的影响。讨论了C-6酮基的去屏蔽作用。