di-O-acetyldemethoxycurcumin | 932744-41-7

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二芳基庚烷
• 英文名称: di-O-acetyldemethoxycurcumin
• 英文别名: [4-[(1E,6E)-7-(4-acetyloxy-3-methoxyphenyl)-3,5-dioxohepta-1,6-dienyl]phenyl] acetate
• CAS: 932744-41-7
• 化学式: C₂₄H₂₂O₇
• 分子量: 422.434
• InChiKey: OVPBMBHDPPQPLI-LUZURFALSA-N

物化性质

• 熔点：
  130-131 °C
• 沸点：
  589.1±50.0 °C(Predicted)
• 密度：
  1.234±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  31
• 可旋转键数：
  11
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  96
• 氢给体数：
  0
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  di-O-acetylbisdemethoxycurcumin 、 di-O-acetyldemethoxycurcumin 在 甲醇 、 potassium carbonate 、 溶剂黄146 作用下， 以 甲醇 为溶剂， 生成 双去甲氧基姜黄素 、 脱甲氧姜黄
  参考文献：
  名称：

  METHOD TO PREPARE PURE CURCUMIN

  摘要：

  这项发明描述了利用酚保护基从较不纯的姜黄素中制备至少99%重量纯度的姜黄素，利用酚保护基有利于在去甲氧基姜黄素、双去甲氧基姜黄素和其他少量成分的姜黄素存在下选择性地重新结晶姜黄素。

  公开号：

  US20100048957A1
• 作为产物：
  描述：

  去甲基姜黄素 以 吡啶 为溶剂， 以33%的产率得到di-O-acetyldemethoxycurcumin
  参考文献：
  名称：

  姜黄素衍生物的用途

  摘要：

  本发明提供了姜黄素衍生物的用途。具体提供了式Ⅰ所示姜黄衍生物，或其盐在制备抗炎性疾病的药物和/或COX抑制剂的用途。本发明姜黄素衍生物具有良好COX抑制活性和抗炎活性，可用于制备COX抑制剂和抗炎药物。其中，化合物6和化合物7对于COX‑2抑制活性和抗炎活性的效果最优。可用于制备COX‑2抑制剂和抗炎药物。

  公开号：

  CN110327315A

文献信息

• Isoxazole analogs of curcuminoids with highly potent multidrug-resistant antimycobacterial activity
  作者：Chatchawan Changtam、Poonpilas Hongmanee、Apichart Suksamrarn

  DOI：10.1016/j.ejmech.2010.07.003

  日期：2010.10

  bisdemethoxycurcumin (3), the curcuminoid constituents of the medicinal plant Curcuma longa L., have been structurally modified to 55 analogs and antimycobacterial activity against Mycobacterium tuberculosis has been evaluated. Among the highly active curcuminoids, the isoxazole analogs are the most active group, with mono-O-methylcurcumin isoxazole (53) being the most active compound (MIC 0.09 μg/mL). It was

  姜黄素（1），去甲氧基姜黄素（2）和双去甲氧基姜黄素（3）（药用植物姜黄的姜黄素成分）已在结构上修饰为55个类似物，并已评估了其对结核分枝杆菌的抗分枝杆菌活性。在高活性姜黄素类化合物中，异恶唑类似物是活性最高的基团，单-O-甲基姜黄素异恶唑（53）是活性最高的化合物（MIC 0.09μg/ mL）。它的活性比母体化合物姜黄素（1）高1131倍，分别比标准药物卡那霉素和异烟肼高18倍和2倍。化合物53还显示出对耐多药结核分枝杆菌临床分离株的高活性，MIC值为0.195–3.125μg/ mL。姜黄素类似物表现出抗分枝杆菌活性的结构要求是在异戊基环上存在一个异恶唑环和两个不饱和键。紧密连接于异恶唑环的氮官能团的芳环上合适的对烷氧基的存在和另一个芳环上的游离对羟基的存在增强了生物活性。
• Curcuminoid analogs with potent activity against Trypanosoma and Leishmania species
  作者：Chatchawan Changtam、Harry P. de Koning、Hasan Ibrahim、M. Sohail Sajid、Matthew K. Gould、Apichart Suksamrarn

  DOI：10.1016/j.ejmech.2009.11.035

  日期：2010.3

  The natural curcuminoids curcumin (1), demethoxycurcumin (2) and bisdemethoxycurcumin (3) have been chemically modified to give 46 analogs and 8 pairs of 1: 1 mixture of curcuminoid analogs and these parent curcuminoids and their analogs were assessed against protozoa of the Tryponosoma and Leishmania species. The parent curcuminoids exhibited low antitrypanosomal activity (EC50 for our drug-sensitive Trypanosoma brucei brucei line (WT) of compounds 1, 2 and 3 are 2.5, 4.6 and 7.7 mu M, respectively). Among 43 curcuminoid analogs and 8 pairs of 1: 1 mixture of curcuminoid analogs tested, 8 pure analogs and 5 isomeric mixtures of analogs exhibited high antitrypanosomal activity in sub-micromolar order of magnitude. Among these highly active analogs, 1,7-bis(4-hydroxy-3-methoxy-phenyl)hept-4-en-3-one (40) was the most active compound, with an EC50 value of 0.053 +/- 0.007 mu M; it was about 2-fold more active than the standard veterinary drug diminazene aceturate (EC50 0.12 +/- 0.01 mu M). Using a previously characterized diminazene-resistant T. b, brucei (TbAT1-KO) and a derived multi-drug resistant line (B48), no cross-resistance of curcuminoids was observed to the diamidine and melaminophenyl arsenical drugs that are the current treatments. Indeed, curcuminoids carrying a conjugated keto (enone) motif, including 40, were significantly more active against 7: b. brucei B48. This enone motif was found to contribute to particularly high trypanocidal activity against all Trypanosoma species and strains tested. The parent curcuminoids showed low antileishmanial activity (EC50 values of compounds 1 and 2 for Leishmania mexicana amastigotes are 16 +/- 3 and 37 +/- 6 mu M. respectively) while the control drug, pentamidine, displayed an EC50 of 16 +/- 2 mu M. Among the active curcuminoid analogs, four Compounds exhibited EC50 values of less than 5 mu M against Leishmania major promastigotes and four against L mexicana amastigotes. No significant difference in sensitivity to curcuminoids between L. major promastigotes and L. mexicana amastigotes was observed. The parent curcuminoids and most of their analogs were also tested for their toxicity against human embryonic kidney (HEK) cells. All the curcuminoids exhibited lower toxicity to HEK cells than to T b. brucei bloodstream forms and only one of the tested compounds showed significantly higher activity against HEK cells than curcumin (1). The selectivity index for T b. brucei ranged from 3-fold to 1500-fold. The selectivity index for the most active analog, the enone 40, was 453-fold. (C) 2009 Elsevier Masson SAS. All rights reserved.