3-O-乙酰基-26-羟基胆固醇 | 50681-37-3

• 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
• 中文名称: 3-O-乙酰基-26-羟基胆固醇
• 英文名称: 27-hydroxycholesterol 3-acetate
• 英文别名: (25ξ)-26-<(tert-butyldiphenylsilyl)oxy>cholest-5-en-3β-ol；3-O-Acetyl-26-hydroxy Cholesterol；[(3S,8S,9S,10R,13R,14S,17R)-17-[(2R)-7-hydroxy-6-methylheptan-2-yl]-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl] acetate
• CAS: 50681-37-3
• 化学式: C₂₉H₄₈O₃
• 分子量: 444.698
• InChiKey: JDAZPBATUQHQGW-YFCBXXETSA-N

物化性质

• 熔点：
  117-121°C
• 沸点：
  527.5±33.0 °C(Predicted)
• 密度：
  1.04±0.1 g/cm3(Predicted)
• 溶解度：
  可溶于DMSO、甲醇（微溶，加热）

计算性质

• 辛醇/水分配系数(LogP)：
  7.7
• 重原子数：
  32
• 可旋转键数：
  8
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.9
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  3-O-乙酰基-26-羟基胆固醇 在 吡啶 、 甲醇 、 氢氧化钾 、 jones reagent 作用下， 以 丙酮 为溶剂， 反应 0.25h， 生成 (25Ξ)-3β-acetoxy-cholest-5-en-26-oic acid methyl ester
  参考文献：
  名称：

  Synthesis of potential C27-intermediates in bile acid biosynthesis and their deuterium-labeled analogs

  摘要：

  In connection with studies of alternative pathways in bile acid biosynthesis, potential intermediates in a pathway starting with 27-hydroxylation of cholesterol have been prepared in natural and deuterated forms. Established methods were used to prepare 27-hydroxycholesterol and 3beta-hydroxy-5-cholestenoic acid. Clemmensen reduction of kryptogenin in unlabeled and deuterated solvents yielded 27-hydroxy-cholesterol and 16-oxo-5-cholestene-3beta,27-diol, which were separated by adsorption chromatography on Unisil. The labeled 27-hydroxycholesterol and 3beta-hydroxy-5-cholestenoic acid derived from it consisted of molecules with seven (50%), six (20%), and eight (20%) deuterium atoms, and unlabeled molecules were not detected. The acetates of 27-hydroxycholesterol and methyl 3beta-hydroxy-5-cholestenoate were 7alpha-hydroxylated in a copper-catalyzed reaction with tert-butylperbenzoate, and the products were purified by chromatography on Unisil. The 7beta-epimers were obtained as side products. Labeled 3beta,7alpha-dihydroxy-5-cholenoic acid was prepared in the same way from 3beta-hydroxy-5-[2,2,4,4,23-H-2(5)-cholenoic acid. The 3-oxo-DELTA4 analogs of the 3beta-hydroxy-DELTA5 compounds were prepared by oxidation with cholesterol oxidase. The labeled products had the same isotopic composition as the starting materials. Gas chromatographic retention indices and mass spectral characteristics of the trimethylsilyl ether derivatives of the neutral steroid and the methylated acids are given for all compounds.

  DOI：

  10.1016/0039-128x(93)90048-r
• 作为产物：
  描述：

  (3S,8S,9S,10R,13R,14S,17R)-17-[(R)-6-(tert-Butyl-dimethyl-silanyloxy)-1,5-dimethyl-hexyl]-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol 在 吡啶 、 水 、 溶剂黄146 作用下， 以 四氢呋喃 为溶剂， 生成 3-O-乙酰基-26-羟基胆固醇
  参考文献：
  名称：

  Synthesis of potential C27-intermediates in bile acid biosynthesis and their deuterium-labeled analogs

  摘要：

  In connection with studies of alternative pathways in bile acid biosynthesis, potential intermediates in a pathway starting with 27-hydroxylation of cholesterol have been prepared in natural and deuterated forms. Established methods were used to prepare 27-hydroxycholesterol and 3beta-hydroxy-5-cholestenoic acid. Clemmensen reduction of kryptogenin in unlabeled and deuterated solvents yielded 27-hydroxy-cholesterol and 16-oxo-5-cholestene-3beta,27-diol, which were separated by adsorption chromatography on Unisil. The labeled 27-hydroxycholesterol and 3beta-hydroxy-5-cholestenoic acid derived from it consisted of molecules with seven (50%), six (20%), and eight (20%) deuterium atoms, and unlabeled molecules were not detected. The acetates of 27-hydroxycholesterol and methyl 3beta-hydroxy-5-cholestenoate were 7alpha-hydroxylated in a copper-catalyzed reaction with tert-butylperbenzoate, and the products were purified by chromatography on Unisil. The 7beta-epimers were obtained as side products. Labeled 3beta,7alpha-dihydroxy-5-cholenoic acid was prepared in the same way from 3beta-hydroxy-5-[2,2,4,4,23-H-2(5)-cholenoic acid. The 3-oxo-DELTA4 analogs of the 3beta-hydroxy-DELTA5 compounds were prepared by oxidation with cholesterol oxidase. The labeled products had the same isotopic composition as the starting materials. Gas chromatographic retention indices and mass spectral characteristics of the trimethylsilyl ether derivatives of the neutral steroid and the methylated acids are given for all compounds.

  DOI：

  10.1016/0039-128x(93)90048-r

文献信息

• Rabinowitz, Michael H.; Djerassi, Carl, Journal of the American Chemical Society, 1992, vol. 114, # 1, p. 304 - 317
  作者：Rabinowitz, Michael H.、Djerassi, Carl

  DOI：——

  日期：——