19-Norandrost-5-ene-3β,10β,17β-triol 3-acetate 17-benzoate | 159045-70-2

• 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: 19-Norandrost-5-ene-3β,10β,17β-triol 3-acetate 17-benzoate
• 英文别名: [(3S,8S,9S,10S,13S,14S,17S)-3-acetyloxy-10-hydroxy-13-methyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl] benzoate
• CAS: 159045-70-2
• 化学式: C₂₇H₃₄O₅
• 分子量: 438.564
• InChiKey: KWJAGJJGQAUHAV-OZESZIMSSA-N

物化性质

• 沸点：
  557.7±50.0 °C(Predicted)
• 密度：
  1.22±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.4
• 重原子数：
  32
• 可旋转键数：
  5
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.63
• 拓扑面积：
  72.8
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  19-Norandrost-5-ene-3β,10β,17β-triol 3-acetate 17-benzoate 在 potassium hydrogencarbonate 作用下， 以 甲醇 、 水 、 苯 为溶剂， 反应 52.0h， 以93%的产率得到19-Norandrost-5-ene-3β,10β,17β-triol 17-monobenzoate
  参考文献：
  名称：

  Stereoelectronically Controlled, Thallium(III)-Mediated C-19 Degradation of 19-Hydroxy Steroids. An Expedient Route to Estrone and its Congeners via 19-Nor-10.beta.-hydroxy Intermediates

  摘要：

  Estrone- (8b) has been synthesized in four steps from 3 beta-acetoxy-19-hydroxyandrost-5-en-17-one (2b), readily available from an industrial precursor. A key feature of the strategy is a stereoelectronically controlled, TI(III)-mediated degradation (2b --> 5b). Oppenauer oxidation of diol 6b, resulting from saponification of the acetate 5b, afforded the unsaturated 10 beta-hydroxy ketone 7b, acid treatment of which induced aromatization affording 8b. An alternative route including dehydration (5b --> 9b) followed by Oppenauer oxidation (10b --> 8b) gave comparable results. This strategy has first been developed with the aid of cholestane model compounds (2a --> 5a) and then successfully applied to the synthesis of analogues in the cholestane, androstane, and pregnane series to produce the corresponding 19-nor-10 beta-hydroxy derivatives 7a-d and A-aromatic steroids 8a-d.

  DOI：

  10.1021/jo00097a056
• 作为产物：
  描述：

  19-hydroxyandrost-5-ene-3β,17β-diyl 3-acetate 17-benzoate 在 高氯酸 、 thallium(III) nitrate 作用下， 以 1,4-二氧六环 为溶剂， 反应 0.25h， 以58%的产率得到19-Norandrost-5-ene-3β,10β,17β-triol 3-acetate 17-benzoate
  参考文献：
  名称：

  Stereoelectronically Controlled, Thallium(III)-Mediated C-19 Degradation of 19-Hydroxy Steroids. An Expedient Route to Estrone and its Congeners via 19-Nor-10.beta.-hydroxy Intermediates

  摘要：

  Estrone- (8b) has been synthesized in four steps from 3 beta-acetoxy-19-hydroxyandrost-5-en-17-one (2b), readily available from an industrial precursor. A key feature of the strategy is a stereoelectronically controlled, TI(III)-mediated degradation (2b --> 5b). Oppenauer oxidation of diol 6b, resulting from saponification of the acetate 5b, afforded the unsaturated 10 beta-hydroxy ketone 7b, acid treatment of which induced aromatization affording 8b. An alternative route including dehydration (5b --> 9b) followed by Oppenauer oxidation (10b --> 8b) gave comparable results. This strategy has first been developed with the aid of cholestane model compounds (2a --> 5a) and then successfully applied to the synthesis of analogues in the cholestane, androstane, and pregnane series to produce the corresponding 19-nor-10 beta-hydroxy derivatives 7a-d and A-aromatic steroids 8a-d.

  DOI：

  10.1021/jo00097a056