3α,7α,12α-triformyloxy-5β-cholan-24-ol | 96736-29-7

• 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: 3α,7α,12α-triformyloxy-5β-cholan-24-ol
• 英文别名: (3alpha,5beta,7alpha,12alpha)-Cholane-3,7,12,24-tetrol 3,7,12-Triformate；[(3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-7,12-diformyloxy-17-[(2R)-5-hydroxypentan-2-yl]-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl] formate
• CAS: 96736-29-7
• 化学式: C₂₇H₄₂O₇
• 分子量: 478.626
• InChiKey: UIEBFQHIAGFERQ-XJZYBRFWSA-N

物化性质

• 沸点：
  559.5±50.0 °C(Predicted)
• 密度：
  1.17±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.5
• 重原子数：
  34
• 可旋转键数：
  10
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.89
• 拓扑面积：
  99.1
• 氢给体数：
  1
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  3α,7α,12α-triformyloxy-5β-cholan-24-ol 在 咪唑 、 碘 、 sodium hydride 、 三苯基膦 作用下， 以 四氢呋喃 、 二甲基亚砜 为溶剂， 反应 7.0h， 生成 diethyl 3α,7α,12α-tris(formyloxy)-5β-cholestan-26,27-dioate
  参考文献：
  名称：

  A convenient synthesis of 5β-cholestan-26-oic and 5β-cholestan-26,27-dioic acids

  摘要：

  A new method for the preparation of 5 beta-cholestan-26-oic acids 7 and their analogs is described. The key steps in the synthesis are: iodination of bis- and tris-formyloxy-5 beta-cholan-24-ols 3; nucleophilic substitution of iodides 4 with diethyl sodiomalonate; complete alkaline hydrolysis of esters 5; and subsequent decarboxylation of geminal diacids 6 in DMSO. (C) 2000 Elsevier Science Inc. All rights reserved.

  DOI：

  10.1016/s0039-128x(99)00099-9
• 作为产物：
  描述：

  胆酸 在 dimethyl sulfide borane 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 26.0h， 生成 3α,7α,12α-triformyloxy-5β-cholan-24-ol
  参考文献：
  名称：

  海七鳃鳗 (Petromyzon marinus) 中非天然硫酸化 5β-胆汁酸衍生物的合成和嗅觉活性。

  摘要：

  合成了多种非天然胆汁酸衍生物 (9a-9f) 并用于检查海七鳃鳗 (Petromyzon marinus) 嗅觉系统检测这些化合物的特异性。这些化合物是硫酸岩藻醇 (PS, 1) 的类似物，是海七鳃鳗迁移信息素的一种成分。C5 的立体化学构型（即 5alpha 与 5beta）以及胆汁酸衍生的类固醇骨架的氧化程度和位点（羟基化或酮化）通过使用嗅觉图记录筛选嗅觉活性的化合物来评估。5beta-Petromyzonol 硫酸盐 (9a) 在亚纳摩尔浓度下引起相当大的嗅觉反应。此外，含氧量较低的系统（即 9b-9e）会引起嗅觉反应，尽管效力较低。还检查了海七鳃鳗性信息素模拟物 9f（5beta-3-ketopetromyzonol 硫酸盐），发现其产生的嗅觉反应要低得多。用 9a 和 PS (1) 进行的混合研究表明刺激是通过类似的激活模式发生的，这表明在海七鳃鳗嗅觉中识别同种异体构型（即 5a

  DOI：

  10.1016/j.steroids.2010.11.010

文献信息

• Bile acids. LXXXI. Synthesis and structural assignment of E/Z isomers of substituted methyl hydroxy-5β-cholest-24-en-26-oates
  作者：Mohammed N. Iqbal、Ping H. Patrick、William H. Elliott

  DOI：10.1016/0039-128x(91)90115-c

  日期：1991.10

  Syntheses of the E and Z isomers of methyl 3 alpha-,3 alpha,7 alpha-,3 alpha,12 alpha-, and 3 alpha,7 alpha,12 alpha-trihydroxy-5 beta-cholest-24-en-26-oates are reported. Mass spectral studies show fragmentation patterns in support of assignment as the E or Z isomers, especially in differences in loss of the side chain. Chromatographic procedures, primarily gas chromatography and high-performance

  甲基 3 alpha-,3 alpha,7 alpha-,3 alpha,12 alpha-和 3 alpha,7 alpha,12 alpha-trihydroxy-5 beta-cholest-24-en-26-的 E 和 Z 异构体的合成报告了燕麦。质谱研究显示碎片模式支持指定为 E 或 Z 异构体，尤其是侧链损失的差异。色谱程序，主要是气相色谱和高效液相色谱，支持这些分配。E 异构体在两种合成方法中的任何一种中占主导地位。
• Improved synthesis of 5β-cholestane-3α,7α,12α, 26(27)-tetrol isomers from cholic acid
  作者：R. Somanathan、S. Krisans

  DOI：10.1016/0039-128x(84)90027-8

  日期：1984.6

  Synthesis of a mixture of the 25(R) and 25(S) isomers of 5 beta-cholestane-3 alpha,7 alpha,12 alpha, 26(27)-tetrol from cholic acid in four steps, including a Wittig reaction, is described.
• Synthesis and in vitro cholesterol dissolution by 23- and 24-phosphonobile acids
  作者：P BABU、U MAITRA

  DOI：10.1016/j.steroids.2005.03.008

  日期：2005.9

  A new class of 23- and 24-phosphonobile acids have been synthesized from bile acid and their in vitro cholesterol-dissolving efficiency have been estimated. 24-Phosphonobile salts (PBSs) are slightly more efficient in solubilizing cholesterol than 23-PBSs and natural bile salts. The cholesterol solubilizing power is influenced by the structure of PBSs, and is considerably reduced with an increase in the bulk pH. ((c) 2005 Elsevier Inc. All rights reserved.
• Synthesis and 29-14C-labeling of 3α,7α,12α-trihydroxy-27-carboxymethyl-5β-cholestan-26-oic acid. A bile acid occurring in peroxisomal diseases
  作者：Guido G. Parmentier、Roger H. Busson、Gerard A. Janssen、Guy P. Mannaerts、Hendrik J. Eyssen

  DOI：10.1016/0039-128x(93)90037-n

  日期：1993.8

  The synthesis and C-14-labeling of 3alpha, 7alpha, 12alpha-trihydroxy-27-carboxymethyl-5beta-cholestan-26-oic acid by two different approaches is described. One of them involves chain elongation of cholic acid via Wittig-Horner condensation of its formylated 24-aldehyde with tetraethyl phosphonoglutarate. The resulting cholestenoate, on deprotection and hydrogenation, affords the unusual C29 bile acid in good yield. An alternative procedure consists in a malonic ester synthesis starting from the formylated 24-alcohol which, after conversion into a mesylate, is reacted with sodium salt of 2-carboethoxy-gamma-butyrolactone. Alkaline hydrolysis, decarboxylation, esterification with diazomethane and selective tosylation of the newly introduced primary hydroxyl function give a C28 precursor, which is easily chain-elongated into a labeled or unlabeled C29 bile acid by reaction with cyanide and hydrolysis. Due to the easy lactonization of some of the C28 intermediates, the latter method provides a better way for introducing a C-29 label than the sequence usually employed for carboxyl labeling of bile acids and consisting in a decarboxylative halogenation of the parent acid followed by substitution of the norhalogenide with [C-14]cyanide and hydrolysis. The structure of the synthesized acid or its dimethyl ester is confirmed by C-14 nuclear magnetic resonance spectroscopy and mass spectrometry, and is also shown by gas liquid chromatography to be identical with an authentic sample of biosynthetic C29 dioic bile acid extracted from body fluids of Zellweger patients.
• Synthesis and olfactory activity of unnatural, sulfated 5β-bile acid derivatives in the sea lamprey (Petromyzon marinus)
  作者：Aaron C. Burns、Peter W. Sorensen、Thomas R. Hoye

  DOI：10.1016/j.steroids.2010.11.010

  日期：2011.2

  sites of oxygenation (hydroxylation or ketonization) of the bile acid derived steroid skeleton were evaluated by screening the compounds for olfactory activity using electro-olfactogram recording. 5beta-Petromyzonol sulfate (9a) elicited a considerable olfactory response at sub-nanomolar concentration. In addition, less oxygenated systems (i.e., 9b-9e) elicited olfactory responses, albeit with less potency

  合成了多种非天然胆汁酸衍生物 (9a-9f) 并用于检查海七鳃鳗 (Petromyzon marinus) 嗅觉系统检测这些化合物的特异性。这些化合物是硫酸岩藻醇 (PS, 1) 的类似物，是海七鳃鳗迁移信息素的一种成分。C5 的立体化学构型（即 5alpha 与 5beta）以及胆汁酸衍生的类固醇骨架的氧化程度和位点（羟基化或酮化）通过使用嗅觉图记录筛选嗅觉活性的化合物来评估。5beta-Petromyzonol 硫酸盐 (9a) 在亚纳摩尔浓度下引起相当大的嗅觉反应。此外，含氧量较低的系统（即 9b-9e）会引起嗅觉反应，尽管效力较低。还检查了海七鳃鳗性信息素模拟物 9f（5beta-3-ketopetromyzonol 硫酸盐），发现其产生的嗅觉反应要低得多。用 9a 和 PS (1) 进行的混合研究表明刺激是通过类似的激活模式发生的，这表明在海七鳃鳗嗅觉中识别同种异体构型（即 5a