(25R)-3α,7α,12α-trihydroxy-5β-cholestan-26-oic acid | 23740-14-9

• 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: (25R)-3α,7α,12α-trihydroxy-5β-cholestan-26-oic acid
• 英文别名: (25R)-3alpha,7alpha,12alpha-trihydroxy-5beta-cholestan-26-oic acid；(2R,6R)-2-methyl-6-[(3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-3,7,12-trihydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]heptanoic acid
• CAS: 23740-14-9
• 化学式: C₂₇H₄₆O₅
• 分子量: 450.659
• InChiKey: CNWPIIOQKZNXBB-WBYPBBSPSA-N

物化性质

• 熔点：
  175-178 °C
• 沸点：
  607.9±55.0 °C(Predicted)
• 密度：
  1.141±0.06 g/cm3(Predicted)
• 溶解度：
  乙醇（微溶）、甲醇（微溶）

计算性质

• 辛醇/水分配系数(LogP)：
  5.2
• 重原子数：
  32
• 可旋转键数：
  6
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.96
• 拓扑面积：
  98
• 氢给体数：
  4
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  (25R)-3α,7α,12α-trihydroxy-5β-cholestan-26-oic acid 在 diborane(6) 作用下， 以 四氢呋喃 为溶剂， 以15 mg的产率得到(25R)-5β-cholestane-3α,7α,12α,26-tetrol
  参考文献：
  名称：

  Synthesis of biological precursors of cholic acid II

  摘要：

  This paper describes the partial syntheses of 3 alpha, 7 alpha, 12 alpha-trihydroxy-5 beta-cholestan-26-al, 7 alpha, 12 alpha, 26-trihydroxy-5 beta-cholestan-3-one and 7 alpha, 12 alpha-dihydroxy-3-oxo-5 beta-cholestan-26-al via Ag2CO3/Celite oxidation of 5 beta-cholestane-3 alpha, 7 alpha, 12 alpha, 26-tetrol. These bile alcohols were resolved by analytical and preparative TLC, characterized by gas-liquid chromatography and mass spectrometry. These compounds will be useful to delineate further the mechanism of oxidation of 5 beta-cholestane-3 alpha, 7 alpha, 12 alpha, 25-tetrol on the pathway to cholic acid.

  DOI：

  10.1016/s0039-128x(81)80018-9
• 作为产物：
  描述：

  胆酸甲酯 在 4-二甲氨基吡啶 、 氢氧化钾 、 sodium hydroxide 、 sodium tetrahydroborate 、 lithium aluminium tetrahydride 、 硼烷 、 双氧水 、 铬酸 、 sodium hydride 、 三乙胺 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 吡啶 、 甲醇 、 二氯甲烷 、 丙酮 为溶剂， 反应 51.84h， 生成 (25R)-3α,7α,12α-trihydroxy-5β-cholestan-26-oic acid
  参考文献：
  名称：

  Kurosawa, Takao; Nakano, Hiroyuki; Sato, Masahiro, Steroids, 1995, vol. 60, # 7, p. 509 - 514

  摘要：

  DOI：

文献信息

• Non-stereoselective Formation of 3.ALPHA.,7.ALPHA.,12.ALPHA.,24-Tetrahydroxy-5.BETA.-cholestan- 26-oic Acid during Cholic Acid Biosynthesis.
  作者：Noriko KOBAYASHI、Chiaki HAGIWARA、Masuo MORISAKI、Masatoshi YURI、Izumi OYA、Yoshinori FUJIMOTO

  DOI：10.1248/cpb.42.1028

  日期：——

  Incubation of (25RS)-, (25R)- and (25S)-3α, 7α, 12α-trihydroxy-5β-cholestan-26-oic acid (THCA, 6, 6a, 6b) and (24E)-3α, 7α, 12α-trihydroxy-5β-cholest-24-en-26-oic acid (7) with rat liver mitochondria gave all four stereoisomers (9a, 9b, 9c, 9d) of 3α, 7α, 12α, 24-Tetrahydroxy-5β-cholestan-26-oic acid (TeHCA). The corresponding 27-nor analogs (10, 11) were also converted non-stereoselectively to a 1 : 1 mixture of the epimeric 24-hydroxy compounds (12).

  将(25RS)-、(25R)-和(25S)-3α, 7α, 12α-三羟基-5β-胆烷-26-酸（THCA，6，6a，6b）以及(24E)-3α, 7α, 12α-三羟基-5β-胆甾-24-烯-26-酸（7）与大鼠肝线粒体结合，产生了4种立体异构体（9a，9b，9c，9d）——3α, 7α, 12α, 24-四羟基-5β-胆烷-26-酸（TeHCA）。相应的27-去氢衍生物（10，11）也非选择性地转化为1:1混合物的对映体24-羟基化合物（12）。
• Stereoisomeric Inversion of (25R)- and (25S)-3.ALPHA.,7.ALPHA.,12.ALPHA.-Trihydroxy-5-.BETA.cholestanoic Acids in Rat Liver Peroxisome.
  作者：Shigeo IKEGAWA、Takaaki GOTO、Hiroo WATANABE、Junichi GOTO

  DOI：10.1248/bpb.18.1027

  日期：——

  The stereoisomeric inversion of (25R)-and (25S)-3α, 7α, 12α-trihydroxy-5β-cholestanoic acid (THCA) in rat liver peroxisome was studied. After incubation of an isomer of THCA-CoA thioester with a peroxisomal fraction, 5β-cholestanoic acids were extracted and optical antipodes were separated and determined by LC/APCI-MS. The transformation of (24E)-3α, 7α, 12α-trihydroxy-5β-cholest-24-en-26-oic acid (Δ24-THCA) formed by acyl-CoA oxidase was also analyzed by GC/NICI-MS. Rapid enzymatic epimerization from either direction was observed prior to biotransformation into (24E)-Δ24-THCA.

  研究了大鼠肝脏过氧化物酶体中(25R)-和(25S)-3α、7α、12α-三羟基-5β-胆甾烷酸(THCA)的立体异构反转。将 THCA-CoA 硫酯异构体与过氧化物酶体级分孵育后，提取 5β-胆甾烷酸，并分离光学对映体并通过 LC/APCI-MS 进行测定。还通过 GC/NICI-MS 分析了酰基辅酶 A 氧化酶形成的 (24E)-3α、7α、12α-三羟基-5β-cholest-24-en-26-oic 酸 (Δ24-THCA) 的转化。在生物转化为 (24E)-Δ24-THCA 之前，观察到来自任一方向的快速酶促差向异构化。
• Synthesis of 3α,7α-dihydroxy-5β-cholestan-26-oic acid from 3α,7α,12α-trihydroxy-5β-cholestan-26-oic acid: configuration in the bile of Alligator mississippiensis
  作者：Ashok K. Batta、Renu Mirchandani、Gerald Salen、Sarah Shefer

  DOI：10.1016/0039-128x(92)90002-q

  日期：1992.4

  product. Purification via column chromatography yielded the pure diastereoisomers in approximately 25% overall yield. The two diastereoisomers were resolved on thin-layer chromatography and high-performance liquid chromatography. When the bile of A mississippiensis was hydrolyzed with rat fecal bacteria, the 3 alpha,7 alpha-dihydroxy-5 beta-cholestan-26-oic acid isolated via chromatographic purification

  描述了由3α，7α，12α-三羟基-5β-胆甾醇-26-酸合成3α，7α-二羟基-5β-胆甾醇-26-酸的25R-和25S-非对映异构体。通过剧烈地水解密西西比短吻鳄的胆汁，然后反复结晶水解物，获得3α，7α，12α-三羟基-5β-胆甾烷-26-oo酸的25S-非对映异构体，且25R-非对映异构体为通过水解密西西比河胆汁中的胆汁盐与大鼠粪便分离。在控制条件下，甲基3α，7α，12α-三羟基-5β-胆甾烷-26-油酸的25R-或25S-非对映异构体的乙酰化产生相应的3α，7α-二乙酸酯。将二乙酸酯定量氧化为甲基3α，7α-二乙酰氧基-12-氧代-5β-胆甾烷-26-酸酯，其以约58％的产率转化为12-甲苯磺酰zone。用硼氢化钠在乙酸中还原甲苯磺酰zone，得到3α，7α-二羟基-5β-胆甾烷-26-油酸的25R-或25S-非对映异构体作为主要产物。通过柱色谱法纯化得到纯的非对映异构体，总产
• Microwave-induced organic reactions of bile acids: Esterification, deformylation and deacetylation using mild reagents
  作者：B. Dayal、Keshava Rao、G. Salen

  DOI：10.1016/0039-128x(95)00004-a

  日期：1995.6

  An efficient and convenient procedure for the esterification, deformylation, and deacetylation of bile acids is described. This is achieved by the addition of a catalytic amount of methanesulfonic acid or para-toluene sulfonic acid to a solution of bile acid in methanol in the domestic microwave oven. All these reactions were completed in the microwave oven within 1-3 min at 60% power (390 W) and the desired bile acids, namely trihydroxy-5 beta-cholestanoic acid, (23R)-3 alpha,7 alpha,23-trihydroxy-5 beta-cholan-24-oic acid, ursocholic acid and 7-ketolithocholic acid were isolated in 86-94% yield.
• Kurauti; Kazuno, Hoppe-Seyler's Zeitschrift fur Physiologische Chemie, 1939, vol. 262, p. 53,56
  作者：Kurauti、Kazuno

  DOI：——

  日期：——