(3S,4R,5S)-6-<(4-Bromobenzyl)oxy>-3,4,5-tris<(trimethylsilyl)oxy>-N-methoxy-N-methylhexanamide | 172293-74-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (3S,4R,5S)-6-<(4-Bromobenzyl)oxy>-3,4,5-tris<(trimethylsilyl)oxy>-N-methoxy-N-methylhexanamide
• 英文别名: (3S,4R,5S)-6-[(4-bromophenyl)methoxy]-N-methoxy-N-methyl-3,4,5-tris(trimethylsilyloxy)hexanamide
• CAS: 172293-74-2
• 化学式: C₂₄H₄₆BrNO₆Si₃
• 分子量: 608.793
• InChiKey: BBOSEFVGAGGBMU-WPFOTENUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.04
• 重原子数：
  35
• 可旋转键数：
  15
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.71
• 拓扑面积：
  66.5
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  (3S,4R,5S)-6-<(4-Bromobenzyl)oxy>-3,4,5-tris<(trimethylsilyl)oxy>-N-methoxy-N-methylhexanamide 在 正丁基锂 、 对甲苯磺酸 、 三乙胺 作用下， 以 四氢呋喃 为溶剂， 反应 11.5h， 生成 (6S)-6-<<(4-Bromobenzyl)oxy>methyl>-5-<(tert-butyldimethylsilyl)oxy>-2-(1,3-dithia-2-cyclohexyl)oxa-2,4-cyclohexadiene
  参考文献：
  名称：

  Synthesis of a 3-Deoxy-D-arabino-2-heptulosonic Acid Derivative

  摘要：

  The synthesis of a selectively protected 3-deoxy-D-arabino-2-heptulosonic acid, 9, from a noncarbohydrate precursor was achieved in six steps (19% yield) from a chiral, gamma,delta-epoxy beta-hydroxy ester, 3a, readily available from the corresponding alpha,beta-epoxy aldehyde. The product was obtained through a Lewis acid-mediated stereocontrolled lactonization of 3a followed by a two-step procedure: synthesis of Weinreb's amide 5a and lithiothiazole nucleophilic attack allowing the introduction of the masked aldehydo frame.

  DOI：

  10.1021/jo00127a047
• 作为产物：
  描述：

  (4S,5R,1'S)-5-<2'-<(4-Bromobenzyl)oxy>-1'-hydroxyethyl>-4-hydroxy-2-oxo-1-oxacyclopentane 在 吡啶 、 三甲基铝 、 六甲基二硅氮烷 作用下， 反应 15.5h， 生成 (3S,4R,5S)-6-<(4-Bromobenzyl)oxy>-3,4,5-tris<(trimethylsilyl)oxy>-N-methoxy-N-methylhexanamide
  参考文献：
  名称：

  Synthesis of a 3-Deoxy-D-arabino-2-heptulosonic Acid Derivative

  摘要：

  The synthesis of a selectively protected 3-deoxy-D-arabino-2-heptulosonic acid, 9, from a noncarbohydrate precursor was achieved in six steps (19% yield) from a chiral, gamma,delta-epoxy beta-hydroxy ester, 3a, readily available from the corresponding alpha,beta-epoxy aldehyde. The product was obtained through a Lewis acid-mediated stereocontrolled lactonization of 3a followed by a two-step procedure: synthesis of Weinreb's amide 5a and lithiothiazole nucleophilic attack allowing the introduction of the masked aldehydo frame.

  DOI：

  10.1021/jo00127a047

文献信息

• Synthesis of a 3-Deoxy-D-arabino-2-heptulosonic Acid Derivative
  作者：Gerard Devianne、Jean-Marc Escudier、Michel Baltas、Liliane Gorrichon

  DOI：10.1021/jo00127a047

  日期：1995.11

  The synthesis of a selectively protected 3-deoxy-D-arabino-2-heptulosonic acid, 9, from a noncarbohydrate precursor was achieved in six steps (19% yield) from a chiral, gamma,delta-epoxy beta-hydroxy ester, 3a, readily available from the corresponding alpha,beta-epoxy aldehyde. The product was obtained through a Lewis acid-mediated stereocontrolled lactonization of 3a followed by a two-step procedure: synthesis of Weinreb's amide 5a and lithiothiazole nucleophilic attack allowing the introduction of the masked aldehydo frame.