11-oxo-oleanolic acid

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: 11-oxo-oleanolic acid
• 英文别名: 3β-hydroxy-11-oxo-olean-12-en-28-oic acid；(4aS,6aR,6aS,6bR,8aR,10S,12aS,14bS)-10-hydroxy-2,2,6a,6b,9,9,12a-heptamethyl-13-oxo-3,4,5,6,6a,7,8,8a,10,11,12,14b-dodecahydro-1H-picene-4a-carboxylic acid
• 化学式: C₃₀H₄₆O₄
• 分子量: 470.693
• InChiKey: ILTQYWVUOPDTOL-DBWGAYEVSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.4
• 重原子数：
  34
• 可旋转键数：
  1
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.87
• 拓扑面积：
  74.6
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  11-oxo-oleanolic acid 在 chromium(VI) oxide 、 硫酸 作用下， 以 丙酮 为溶剂， 反应 1.0h， 以75%的产率得到methyl 3,11-dioxoolean-12-en-28-oate
  参考文献：
  名称：

  具有胆碱酯酶抑制潜力的熊果酸和齐墩果酸衍生物。

  摘要：

  三萜类化合物是科学关注的焦点，并且在许多药理学应用中对三萜类化合物进行了评估，其中它们具有充当胆碱酯酶抑制剂的能力。这些抑制剂仍然是令人感兴趣的药物，它们可以改善患有与年龄有关的痴呆症（尤其是阿尔茨海默氏病）的痴呆症患者的生活质量。本文中，我们制备了熊果酸和齐墩果酸的几种衍生物，并在Ellman分析中对其抑制乙酰胆碱酯酶和/或丁酰胆碱酯酶的能力进行了筛选，并确定了每种活性化合物的抑制类型。结果，即使在微摩尔范围内，几种化合物也被证明是乙酰胆碱酯酶和丁酰胆碱酯酶的良好抑制剂。熊果酸衍生的羟基-丙烯酰基衍生物10是丁酰胆碱酯酶的竞争性抑制剂，其抑制常数为Ki = 4.29μM，因此，其活性是金标准加兰他敏氢溴酸盐的两倍。然而，最好的乙酰胆碱酯酶抑制剂是2-甲基-3-氧代甲基熊果酸酯（18），它是一种混合型抑制剂，分别显示Ki = 1.72 µM和Ki'= 1.28 µM。

  DOI：

  10.1016/j.bioorg.2018.12.013
• 作为产物：
  描述：

  齐墩果酸 在 4-二甲氨基吡啶 、 potassium permanganate 、 乙醇 、 potassium hydroxide 作用下， 以 二氯甲烷 、 水 、 叔丁醇 为溶剂， 生成 11-oxo-oleanolic acid
  参考文献：
  名称：

  枯草芽孢杆菌ATCC 6633和巨大芽孢杆菌CGMCC 1.1741对甘草次酸衍生物的微生物转化。

  摘要：

  甘草次酸（GA）是甘草根的主要生物活性五环三萜糖苷配基，已知在抗溃疡，抗抑郁，抗炎和抗过敏方面起着至关重要的作用。在这项研究中，我们通过一系列化学反应半合成了五种GA衍生物。它们被选作生物转化的底物，并被枯草芽孢杆菌ATCC 6633和巨大芽孢杆菌CGMCC 1.1741产生13种代谢物。根据广泛的光谱学方法鉴定了它们的结构，并且首次发现了其中的九种。在生物转化过程中观察到两种主要类型的反应，区域和立体选择性羟基化和糖基化，特别是在未激活的CH键中，包括C-11，C-19和C-27，大大扩展了GA的化学多样性衍生品。测试了所有化合物对脂多糖（LPS）刺激的RAW 264.7细胞中一氧化氮（NO）生成的抑制作用。其中，olean-12-ene-3β，7β，15α，19α，30-pentol（16）和olean-12-ene-3β，7β，15α，27,30-pentol（17）对IC50表现出明显的抑制作用值分别为0

  DOI：

  10.1016/j.bmc.2020.115465

文献信息

• Microbial transformation of glycyrrhetinic acid derivatives by Bacillus subtilis ATCC 6633 and Bacillus megaterium CGMCC 1.1741
  作者：Pingping Shen、Jian Zhang、Yuyuan Zhu、Wei Wang、Boyang Yu、Weiwei Wang

  DOI：10.1016/j.bmc.2020.115465

  日期：2020.6

  ATCC 6633 and Bacillus megaterium CGMCC 1.1741. Their structures were identified on the basis of extensive spectroscopic methods and nine of them were found for the first time. Two main types of reactions, regio- and stereo-selective hydroxylation and glycosylation, especially in the unactivated C-H bonds including C-11, C-19 and C-27, were observed in the biotransformation process, which greatly expand

  甘草次酸（GA）是甘草根的主要生物活性五环三萜糖苷配基，已知在抗溃疡，抗抑郁，抗炎和抗过敏方面起着至关重要的作用。在这项研究中，我们通过一系列化学反应半合成了五种GA衍生物。它们被选作生物转化的底物，并被枯草芽孢杆菌ATCC 6633和巨大芽孢杆菌CGMCC 1.1741产生13种代谢物。根据广泛的光谱学方法鉴定了它们的结构，并且首次发现了其中的九种。在生物转化过程中观察到两种主要类型的反应，区域和立体选择性羟基化和糖基化，特别是在未激活的CH键中，包括C-11，C-19和C-27，大大扩展了GA的化学多样性衍生品。测试了所有化合物对脂多糖（LPS）刺激的RAW 264.7细胞中一氧化氮（NO）生成的抑制作用。其中，olean-12-ene-3β，7β，15α，19α，30-pentol（16）和olean-12-ene-3β，7β，15α，27,30-pentol（17）对IC50表现出明显的抑制作用值分别为0
• Sulfamates of methyl triterpenoates are effective and competitive inhibitors of carbonic anhydrase II
  作者：Stefan Schwarz、Sven Sommerwerk、Susana D. Lucas、Lucie Heller、René Csuk

  DOI：10.1016/j.ejmech.2014.08.051

  日期：2014.10

  Carbonic anhydrase II, belonging to one of the most important enzyme groups of the human body, is a well-studied isozyme from the family of the carbonic anhydrases. Since it is involved in several physiological processes, it has been a pharmaceutical target for many years. In this study we synthesized a number of sulfamates derived from pentacyclic methyl triterpenoates, and we demonstrate their potential as carbonic anhydrase II inhibitors using the well-established photometric 4-nitrophenyl acetate assay. Inhibition constants, as an indicator of their inhibition strength, were in the micromolar range; one compound (10, methyl (3 beta) 3-(aminosulfonyloxy)-oleanoate) showed a K-i value as low as 0.3 mu M. This K-i value is comparable to that of acetazolamide which is a potent carbonic anhydrase inhibitor and a drug for the treatment of glaucoma. (C) 2014 Elsevier Masson SAS. All rights reserved.
• Triterpenoid Hydroxamates as HIF Prolyl Hydrolase Inhibitors
  作者：Alberto Minassi、Federica Rogati、Cristina Cruz、M. Eugenia Prados、Nuria Galera、Carla Jinénez、Giovanni Appendino、M. Luz Bellido、Marco A Calzado、Diego Caprioglio、Eduardo Muñoz

  DOI：10.1021/acs.jnatprod.8b00514

  日期：2018.10.26

  Pentacyclic triterpenoid acids (PCTTAs) are pleiotropic agents that target many macromolecular endpoints with low to moderate affinity. To explore the biological space associated with PCTTAs, we have investigated the carboxylate-to-hydroxamate transformation, discovering that it de-emphasizes affinity for the transcription factors targeted by the natural compounds (NF-kappa B, STAT3, Nrf2, TGRS) and selectively induces inhibitory activity on HIF prolyl hydrolases (PHDs). Activity was reversible, isoform-selective, dependent on the hydroxamate location, and negligible when this group was replaced by other chelating elements or O-alkylated. The hydroxamate of betulinic acid (Sb) was selected for further studies, and evaluation of its effect on HIF-la expression under normal and hypoxic conditions qualified it as a promising lead structure for the discovery of new candidates in the realm of neuroprotection.
• Synthesis and activity of oleanolic acid derivatives, a novel class of inhibitors of osteoclast formation
  作者：Yuan Zhang、Jian-xin Li、Jianwei Zhao、Shao-zhong Wang、Yi Pan、Ken Tanaka、Shigetoshi Kadota

  DOI：10.1016/j.bmcl.2005.01.061

  日期：2005.3

  Two series of oleanolic acid derivatives were synthesized and their inhibitory activity on the formation of osteoclast-like multinucleated cells (OCLs) induced by 1 alpha,25-dihydroxy vitamin D-3 was evaluated in a co-culture assay system. The structure-activity relationships, together with electronic structure based on the frontier molecular orbitals, for example, HOMO and LUMO, related to different amino acid substituents were studied. Derivatives with proline or phenylalanine showed a tendency to enhance the inhibitory activity. (c) 2005 Elsevier Ltd. All rights reserved.
• Synthesis and Biological Evaluation of Oleanolic Acid Derivatives as Novel Inhibitors of Protein Tyrosine Phosphatase 1B
  作者：Jia Li、Wen-Wei Qiu、Hui Li、Hui Zou、Li-Xin Gao、Ting Liu、Fan Yang、Jing-Ya Li、Jie Tang

  DOI：10.3987/com-12-12445

  日期：——

  A series of oleanolic acid (OA) derivatives have been synthesized and their inhibitory effects on PTP1B, TCPTP and related PTPs are evaluated. Some compounds with five-membered heterocyclic ring-fused at C-2, C-3 positions showed a dramatic increase in inhibition, the two most potent PTP1B inhibitors 19 (IC50 = 0.91 mu M) and 21 (IC50 = 0.98 mu M) showed about 3-fold more potent than lead compound OA. Some C-ring modified OA analogs showed high selectivity for PTP1B over TCPTP, among them, 50 possessed the best selectivity of 6.6-fold.