cholyl-adenylate | 220952-02-3

• 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
• 英文名称: cholyl-adenylate
• 英文别名: [[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl] (4R)-4-[(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]pentanoate
• CAS: 220952-02-3
• 化学式: C₃₄H₅₂N₅O₁₁P
• 分子量: 737.788
• InChiKey: WHCSUUZSAFILOZ-FBUSFQKJSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  51
• 可旋转键数：
  10
• 环数：
  7.0
• sp3杂化的碳原子比例：
  0.82
• 拓扑面积：
  253
• 氢给体数：
  7
• 氢受体数：
  15

反应信息

• 作为产物：
  描述：

  胆酸 、 5'-腺嘌呤核苷酸 在 吡啶 、 N,N'-二环己基碳二亚胺 作用下， 反应 7.0h， 以33%的产率得到cholyl-adenylate
  参考文献：
  名称：

  Chemical synthesis of bile acid acyl-adenylates and formation by a rat liver microsomal fraction

  摘要：

  In mammals, unconjugated bile acids formed in the intestine by bacterial deconjugation are reconjugated (N-acylamidated) with taurine or glycine during hepatocyte transport. Activation of the carboxyl group of bile acids to form acyl-adenylates is a likely key intermediate step in bile acid N-acylamidation. To gain more insight into the process of bile acid adenylate formation, we first synthesized the adenylates of five common, natural bile acids (cholic, deoxycholic, chenodeoxycholic, ursodeoxycholic, and lithocholic acid), and confirmed their structure by proton NMR. We then investigated adenylate formation by subcellular fractions of rat liver (microsomes, mitochondria, cytsol) using a newly developed LC method for quantifying adenylate formation. The highest activity was observed in the microsomal fraction. The reaction required Mg2+ and its optimum pH was about pH 7.0. In term of maximum velocity (V x) and the Michaelis constant (K), the catalytic efficiency of the enzyme under the conditions used was highest with cholic acid of the bile acids tested. The formation of cholyl-adenylate was strongly inhibited by lithocholic and deoxycholic acid, as well as by palmitic acid; ibuprofen and valproic acid were weak inhibitors. In cholestatic disease, such adenylate formation might lead to subsequent bile acid conjugation with glutathione or proteins. (C) 2009 Elsevier Inc. All rights reserved.

  DOI：

  10.1016/j.steroids.2009.04.003