D-(+)-13β-ethyl-3-methoxygona-1,3,5(10)-trien-17β-yl trifluoroacetate | 162210-67-5

• 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: D-(+)-13β-ethyl-3-methoxygona-1,3,5(10)-trien-17β-yl trifluoroacetate
• CAS: 162210-67-5
• 化学式: C₂₂H₂₇F₃O₃
• 分子量: 396.45
• InChiKey: BQZDIHWQRHNRMS-AGRFSFNASA-N

物化性质

• 沸点：
  444.9±45.0 °C(Predicted)
• 密度：
  1.23±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.42
• 重原子数：
  28.0
• 可旋转键数：
  3.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.68
• 拓扑面积：
  35.53
• 氢给体数：
  0.0
• 氢受体数：
  3.0

反应信息

• 作为反应物：
  描述：

  D-(+)-13β-ethyl-3-methoxygona-1,3,5(10)-trien-17β-yl trifluoroacetate 在 氢氧化钾 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 反应 1.0h， 以85%的产率得到(8R,9S,13S,14S,17S)-13-乙基-3-甲氧基-6,7,8,9,11,12,14,15,16,17-十氢环戊烯并[a]菲-17-醇
  参考文献：
  名称：

  Preparative chemical methods for aromatization of 19-nor-Δ4-3-oxosteroids

  摘要：

  Two preparative chemical methods for aromatization of 19-nor-Delta(4)-3-oxosteroids are described. The first method consists of an oxidative aromatization of 19-nor-Delta(4)-3-oxosteroids with iodine-eerie ammonium nitrate in methanol to give a mixture of 3-methoxy ring-A aromatized derivatives consisting of the desired product, the Delta(9,11) derivative, the 6-oxo derivative as well as some ring-A iodinated material. Conversion of this material to a mixture of the 3-methoxy ring-A aromatized derivative and its 6-oxo derivative was achieved by catalytic hydrogenation. Finally, reduction of the 6-oxo function with triethylsilane in trifluoroacetic acid gave the 3-methoxy-17-trifluoroacetate ring-A aromatized derivative as a single product. In the second method, reaction of 19-nor-Delta(4)-3-oxosteroids with copper(II) bromide in acetonitrile at room temperature resulted in aromatic steroids in a single step in excellent yields. The second method was used in the first practical chemical synthesis of a 6-dehydroestrogen from a 19-nor-Delta(4,6)-3-oxosteroid.

  DOI：

  10.1016/0039-128x(94)90017-5
• 作为产物：
  描述：

  左炔诺孕酮 在 Celite 、 silver carbonate 作用下， 以 甲苯 为溶剂， 生成 D-(+)-13β-ethyl-3-methoxygona-1,3,5(10)-trien-17β-yl trifluoroacetate
  参考文献：
  名称：

  Preparative chemical methods for aromatization of 19-nor-Δ4-3-oxosteroids

  摘要：

  Two preparative chemical methods for aromatization of 19-nor-Delta(4)-3-oxosteroids are described. The first method consists of an oxidative aromatization of 19-nor-Delta(4)-3-oxosteroids with iodine-eerie ammonium nitrate in methanol to give a mixture of 3-methoxy ring-A aromatized derivatives consisting of the desired product, the Delta(9,11) derivative, the 6-oxo derivative as well as some ring-A iodinated material. Conversion of this material to a mixture of the 3-methoxy ring-A aromatized derivative and its 6-oxo derivative was achieved by catalytic hydrogenation. Finally, reduction of the 6-oxo function with triethylsilane in trifluoroacetic acid gave the 3-methoxy-17-trifluoroacetate ring-A aromatized derivative as a single product. In the second method, reaction of 19-nor-Delta(4)-3-oxosteroids with copper(II) bromide in acetonitrile at room temperature resulted in aromatic steroids in a single step in excellent yields. The second method was used in the first practical chemical synthesis of a 6-dehydroestrogen from a 19-nor-Delta(4,6)-3-oxosteroid.

  DOI：

  10.1016/0039-128x(94)90017-5