ajugasterone A 2,3,22-triacetate | 78527-49-8

• 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: ajugasterone A 2,3,22-triacetate
• 英文别名: polypodine B 2,3,22-triacetate；[(2S,3R,5S,9R,10R,13R,14S,17S)-3-acetyloxy-17-[(2R,3R)-3-acetyloxy-2,6-dihydroxy-6-methylheptan-2-yl]-5,14-dihydroxy-10,13-dimethyl-6-oxo-1,2,3,4,9,11,12,15,16,17-decahydrocyclopenta[a]phenanthren-2-yl] acetate
• CAS: 78527-49-8
• 化学式: C₃₃H₅₀O₁₁
• 分子量: 622.753
• InChiKey: NWUQYEVRLIYCNF-RYFSTCEDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  44
• 可旋转键数：
  11
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.82
• 拓扑面积：
  177
• 氢给体数：
  4
• 氢受体数：
  11

反应信息

• 作为产物：
  描述：

  乙酸酐 、 埃克甾酮 B 在 吡啶 作用下， 反应 24.0h， 以26.6%的产率得到ajugasterone A 2,3,22-triacetate
  参考文献：
  名称：

  Significant Activity of Ecdysteroids on the Resistance to Doxorubicin in Mammalian Cancer Cells Expressing the Human ABCB1 Transporter

  摘要：

  Multidrug resistance (MDR) is a major cause of failure of cancer chemotherapy. Fifty-eight ecdysteroids, herbal analogues of the insect molting hormone and their semisynthetic derivatives, were tested for their activity against L5178 mouse T-cell lymphoma cells (non-MDR) and their subcell line transfected with pHa MDR1/A retrovirus overexpressing the human ABCB1 efflux pump (MDR cell line). The compounds showed very low antiproliferative activities but modulated the efflux of rhodamine 123 mediated by the ABCB1 transporter. Roughly depending on the polarity, mild to strong synergism or antagonism was observed by combining ecdysteroids with doxorubicin, and specific structure-activity relationships were also found. Our results show the effect of ecdysteroids on MDR cancer cells for the first time. Less polar derivatives may serve as valuable leads toward a potent and safe resistance modulator. Biological significance of the resistance-increasing activity of the most abundant phytoecdysteroids including 20-hydroxyecdysone is yet to be clarified.

  DOI：

  10.1021/jm300424n

文献信息

• Significant Activity of Ecdysteroids on the Resistance to Doxorubicin in Mammalian Cancer Cells Expressing the Human ABCB1 Transporter
  作者：Ana Martins、Noémi Tóth、Attila Ványolós、Zoltán Béni、István Zupkó、József Molnár、Mária Báthori、Attila Hunyadi

  DOI：10.1021/jm300424n

  日期：2012.6.14

  Multidrug resistance (MDR) is a major cause of failure of cancer chemotherapy. Fifty-eight ecdysteroids, herbal analogues of the insect molting hormone and their semisynthetic derivatives, were tested for their activity against L5178 mouse T-cell lymphoma cells (non-MDR) and their subcell line transfected with pHa MDR1/A retrovirus overexpressing the human ABCB1 efflux pump (MDR cell line). The compounds showed very low antiproliferative activities but modulated the efflux of rhodamine 123 mediated by the ABCB1 transporter. Roughly depending on the polarity, mild to strong synergism or antagonism was observed by combining ecdysteroids with doxorubicin, and specific structure-activity relationships were also found. Our results show the effect of ecdysteroids on MDR cancer cells for the first time. Less polar derivatives may serve as valuable leads toward a potent and safe resistance modulator. Biological significance of the resistance-increasing activity of the most abundant phytoecdysteroids including 20-hydroxyecdysone is yet to be clarified.