24S-methyl-31-norlanosta-8,25-dien-3β-ol acetate | 142698-58-6

• 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: 24S-methyl-31-norlanosta-8,25-dien-3β-ol acetate
• CAS: 142698-58-6
• 化学式: C₃₂H₅₂O₂
• 分子量: 468.764
• InChiKey: BZJUWCNFZPOIQV-RLZANUAOSA-N

物化性质

• 沸点：
  515.4±49.0 °C(Predicted)
• 密度：
  0.99±0.1 g/cm3(Predicted)

反应信息

• 作为产物：
  描述：

  乙酸酐 、 24S-methyl-31-norlanosta-8,25-dien-3β-ol 在 吡啶 作用下， 生成 24S-methyl-31-norlanosta-8,25-dien-3β-ol acetate
  参考文献：
  名称：

  24S-Chirality of 24-alkylsterols possessing a Δ25-double bond from Polypodium formosanum

  摘要：

  Twenty-one components of the 4,4-dimethyl-, 4-methyl- and 4-demethylsterol fractions of the rhizomes and aerial parts of Polypodium formosanum were identified, including both epimers at C-24 of 24-methylcholest-5-en-3-beta-ol. All other 24-alkylsterols were sterically pure. NMR data show that all nine 24-alkyl-DELTA(25)-sterols from this plant have the 24S/beta-configuration. Four of these sterols, viz. 24-methyl-25-dehydrocycloartanol, 24-ethyl-25-dehydrocycloartanol, 24-methyl-25-dehydrolophenol and 24-ethyl-25-dehydrolophenol have been misidentified in the literature (they were reported to have the 24R/alpha-configuration). 24S-Methyl-31-norlanosta-8,25-dien-3-beta-ol seems to be a novel sterol.

  DOI：

  10.1016/0031-9422(92)80289-q