(2R,4S,5S,6S)-4,5-O-isopropylidene-1-methoxymethoxy-2,6-dimethyloctane

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (2R,4S,5S,6S)-4,5-O-isopropylidene-1-methoxymethoxy-2,6-dimethyloctane
• 化学式: C₁₅H₃₀O₄
• 分子量: 274.401
• InChiKey: GLKBWQNHBBNWMS-RFGFWPKPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  19.0
• 可旋转键数：
  8.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  36.92
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为产物：
  描述：

  L-异亮氨酸 在 钯 盐酸 、 氢气 、 叔丁基锂 、 二异丁基氢化铝 、 对甲苯磺酸 、 溶剂黄146 、 N,N-二异丙基乙胺 、 sodium nitrite 作用下， 以 乙醚 、 二氯甲烷 、 乙酸乙酯 、 正戊烷 为溶剂， 反应 31.5h， 生成 (2R,4S,5S,6S)-4,5-O-isopropylidene-1-methoxymethoxy-2,6-dimethyloctane
  参考文献：
  名称：

  Absolute configuration of main chain of AAL-toxins.

  摘要：

  AAL-toxins TA(1) 1 and TA(2) 2, host-specific toxins produced by Alternaria alternata, were degraded to 2-methylbutanol, 3-methylnonan-1,9-diol and N-protected 4-aminobutan-1-3-diol, which were further converted to (R)-MTPA esters. These esters were correlated with synthesis samples by comparison of their 500 MHz H-1-NMR spectra. The remaining stereocenters were determined by the comparison of H-1-NMR spectra of 6a and 7 derived from 1 and 2 with those of synthetic model compounds. These data conclude that AAL-toxins possess 2S, 4S, 5R, 11S, 13S, 14R and 15R configurations.

  DOI：

  10.1016/s0040-4020(01)89343-1

文献信息

• Absolute configuration of main chain of AAL-toxins.
  作者：Hideaki Oikawa、Isamu Matsuda、Takashi Kagawa、Akitami Ichihara、Keisuke Kohmoto

  DOI：10.1016/s0040-4020(01)89343-1

  日期：1994.1

  AAL-toxins TA(1) 1 and TA(2) 2, host-specific toxins produced by Alternaria alternata, were degraded to 2-methylbutanol, 3-methylnonan-1,9-diol and N-protected 4-aminobutan-1-3-diol, which were further converted to (R)-MTPA esters. These esters were correlated with synthesis samples by comparison of their 500 MHz H-1-NMR spectra. The remaining stereocenters were determined by the comparison of H-1-NMR spectra of 6a and 7 derived from 1 and 2 with those of synthetic model compounds. These data conclude that AAL-toxins possess 2S, 4S, 5R, 11S, 13S, 14R and 15R configurations.