methyl 3-oxo-7β-hydroxy-5β-cholan-24-oate | 67371-28-2

• 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: methyl 3-oxo-7β-hydroxy-5β-cholan-24-oate
• 英文别名: methyl 7β-hydroxy-3-oxo-5β-cholan-24-oate；methyl (5β,7β)-7-hydroxy-3-oxocholan-24-oate；5β-cholan-3-one-7β-ol-24-oic acid methyl ester；7b-Hydroxy-3-oxo-5b-cholan-24-oate；methyl (4R)-4-[(5R,7S,8R,9S,10S,13R,14S,17R)-7-hydroxy-10,13-dimethyl-3-oxo-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]pentanoate
• CAS: 67371-28-2
• 化学式: C₂₅H₄₀O₄
• 分子量: 404.59
• InChiKey: XHRLTYUHWGHDCJ-JFRFJXPMSA-N

物化性质

• 沸点：
  505.7±25.0 °C(Predicted)
• 密度：
  1.085±0.06 g/cm3(Predicted)
• 溶解度：
  可溶于丙酮、氯仿、甲醇

计算性质

• 辛醇/水分配系数(LogP)：
  4.8
• 重原子数：
  29
• 可旋转键数：
  5
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.92
• 拓扑面积：
  63.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  methyl 3-oxo-7β-hydroxy-5β-cholan-24-oate 在 sodium tetrahydroborate 、 无水碳酸镉 作用下， 以 甲醇 、 甲苯 为溶剂， 反应 8.5h， 生成 methyl ursodeoxycholate 7-N-acetylglucosaminide triacetate
  参考文献：
  名称：

  Synthesis of N-acetylglucosaminides of unconjugated and conjugated bile acids

  摘要：

  3-N-Acetylglucosaminides of unconjugated, glycine- and taurine-conjugated bile acids have been synthesized. Bile acids appropriately protected were condensed with acetochloroglucosamine through the 3 alpha-hydroxyl group by means of the Koenigs-Knorr reaction using cadmium carbonate as a catalyst. Subsequent borohydride reduction and/or alkaline hydrolysis provided desired 3-N-acetylglucosaminides of unconjugated bile acids. Glycine-conjugates were obtained from N-acetylglucosaminides of unconjugated bile acids and ethyl glycinate by the carbodiimide method. The preparation of N-acetylglucosaminides of taurine-conjugates was attained by the Koenigs-Knorr reaction of bile acid p-nitrophenyl esters followed by condensation with taurine. 7-N-Acetylglucosaminides of ursodeoxycholates were prepared in a similar fashion. The convenient synthesis of 3-N-acetylglucosaminides of unconjugated bile acids is also described.

  DOI：

  10.1016/0039-128x(92)90021-z
• 作为产物：
  描述：

  甲基3,7-二羟基胆烷-24-酸酯 在 sodium hypochlorite 、 2,2,6,6-四甲基哌啶氧化物 、 碳酸氢钠 作用下， 以 二氯甲烷 、 水 为溶剂， 以64 %的产率得到methyl 3-oxo-7β-hydroxy-5β-cholan-24-oate
  参考文献：
  名称：

  羟基类固醇脱氢酶催化类固醇中 3-酮的高度区域选择性、化学选择性和对映选择性氢化

  摘要：

  证明了在羟基类固醇脱氢酶 (HSDH) 的催化下，类固醇中的 3-酮基可以高度选择性地氢化为 3-羟基类固醇。 Ct3α-HSDH催化的氢化反应以高产率产生了作为主要对映体纯异构体的3α-羟基类固醇，而Ss3β-HSDH催化体系则以优异的产率产生了3β-羟基类固醇。在两种催化体系中，氢化反应在 3-酮基上进行区域选择性，7-、11-、17-和 20-酮基几乎未反应，并且在 C=C 键和酯基未受攻击的情况下进行化学选择性氢化。我们的HSDH促进的氢化反应具有区域选择性、化学选择性和对映选择性高、收率好、条件温和、底物范围广、适合克级合成等优点。值得注意的是，通过我们的氢化方法，可以轻松、高产地获得脱氢表雄酮、布烯醇酮和阿法沙酮等生物活性分子。

  DOI：

  10.1021/acs.orglett.3c03557

文献信息

• High Enantioselective and Large-Scale Production of Ursodeoxycholic Acid by Combination of Pd- and Hydroxysteroid Dehydrogenase-Catalyzed Hydrogenation
  作者：Chunling Zeng、Xirong Liu、Chao Sun、Xinhua Xu、Lifen Peng

  DOI：10.1021/acs.oprd.4c00057

  日期：2024.4.19

  Ursodeoxycholic acid (UDCA) was synthesized from commercially available phytosterol-derived bisnoralcohol with an overall yield of 57% by a six-step process. The absolute configuration of the 3,5,7-stereogenic centers in UDCA was determined using Pd-catalyzed and hydroxysteroid dehydrogenase (HSDH)-catalyzed hydrogenation conducted under normal temperature and atmospheric pressure conditions. To investigate

  熊去氧胆酸（UDCA）是由市售的植物甾醇衍生的双纳尔醇通过六步工艺合成的，总产率为 57%。 UDCA 中 3,5,7-立体中心的绝对构型是通过在常温常压条件下进行的 Pd 催化和羟基类固醇脱氢酶 (HSDH) 催化的氢化来确定的。为了研究催化剂的立体选择性和区域选择性并评估产品的最终纯度，使用带电气溶胶检测 (CAD) 的 HPLC 合成并分析了所有潜在杂质。开发的工艺证明了成本效益以及大规模生产具有 ICH 级质量的 UDCA 的适用性。我们的 Pd 催化和 HSDH 催化氢化技术也可应用于 alphaxalone 和 brexanolone 的合成。
• EP1985621
  申请人：——

  公开号：——

  公开（公告）日：——
• OWEN, ROBERT W.;WAIT, ROBIN;BILTON, RODNEY F., J. LIPID RES., 29,(1988) N 4, 459-468
  作者：OWEN, ROBERT W.、WAIT, ROBIN、BILTON, RODNEY F.

  DOI：——

  日期：——
• Synthesis of N-acetylglucosaminides of unconjugated and conjugated bile acids
  作者：Niwa Toshifumi、Koshiyama Tomoyoshi、Goto Junichi、Nambara Toshio

  DOI：10.1016/0039-128x(92)90021-z

  日期：1992.11

  3-N-Acetylglucosaminides of unconjugated, glycine- and taurine-conjugated bile acids have been synthesized. Bile acids appropriately protected were condensed with acetochloroglucosamine through the 3 alpha-hydroxyl group by means of the Koenigs-Knorr reaction using cadmium carbonate as a catalyst. Subsequent borohydride reduction and/or alkaline hydrolysis provided desired 3-N-acetylglucosaminides of unconjugated bile acids. Glycine-conjugates were obtained from N-acetylglucosaminides of unconjugated bile acids and ethyl glycinate by the carbodiimide method. The preparation of N-acetylglucosaminides of taurine-conjugates was attained by the Koenigs-Knorr reaction of bile acid p-nitrophenyl esters followed by condensation with taurine. 7-N-Acetylglucosaminides of ursodeoxycholates were prepared in a similar fashion. The convenient synthesis of 3-N-acetylglucosaminides of unconjugated bile acids is also described.
• Hydroxysteroid Dehydrogenase-Catalyzed Highly Regio-, Chemo-, and Enantioselective Hydrogenation of 3-Keto in Steroids
  作者：Chunling Zeng、Shitang Xu、Jie Shen、Saijie Zhao、Xinhua Xu、Lifen Peng

  DOI：10.1021/acs.orglett.3c03557

  日期：2024.1.12

  A highly selective hydrogenation of 3-keto in steroids to 3-hydroxyl steroids catalyzed by hydroxysteroid dehydrogenases (HSDHs) was demonstrated. The Ct3α-HSDH-catalyzed hydrogenation generated 3α-hydroxyl steroids as the main enantiopure isomers in high yields, while the Ss3β-HSDH catalytic system afforded 3β-hydroxyl steroids in excellent yields. In both catalytic systems, the hydrogenation proceeded

  证明了在羟基类固醇脱氢酶 (HSDH) 的催化下，类固醇中的 3-酮基可以高度选择性地氢化为 3-羟基类固醇。 Ct3α-HSDH催化的氢化反应以高产率产生了作为主要对映体纯异构体的3α-羟基类固醇，而Ss3β-HSDH催化体系则以优异的产率产生了3β-羟基类固醇。在两种催化体系中，氢化反应在 3-酮基上进行区域选择性，7-、11-、17-和 20-酮基几乎未反应，并且在 C=C 键和酯基未受攻击的情况下进行化学选择性氢化。我们的HSDH促进的氢化反应具有区域选择性、化学选择性和对映选择性高、收率好、条件温和、底物范围广、适合克级合成等优点。值得注意的是，通过我们的氢化方法，可以轻松、高产地获得脱氢表雄酮、布烯醇酮和阿法沙酮等生物活性分子。