(2R,3R)-2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-4-oxochroman-7-yl cinnamate

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 黄酮类化合物
• 英文名称: (2R,3R)-2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-4-oxochroman-7-yl cinnamate
• 英文别名: 7-O-cinnamoyltaxifolin
• 化学式: C₂₄H₁₈O₈
• 分子量: 434.402
• InChiKey: FCHNWSZBZGZZDN-BGMUDGIESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  32.0
• 可旋转键数：
  4.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  133.52
• 氢给体数：
  4.0
• 氢受体数：
  8.0

反应信息

• 作为产物：
  描述：

  肉桂酸 在 草酰氯 、 三乙胺 、 N,N-二甲基甲酰胺 作用下， 以 四氢呋喃 为溶剂， 反应 3.0h， 生成 (2R,3R)-2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-4-oxochroman-7-yl cinnamate
  参考文献：
  名称：

  7-O-Esters of taxifolin with pronounced and overadditive effects in neuroprotection, anti-neuroinflammation, and amelioration of short-term memory impairment in vivo

  摘要：

  Alzheimer's disease (AD) is a multifactorial disease and the most common form of dementia. There are no treatments to cure, prevent or slow down the progression of the disease. Natural products hold considerable interest for the development of preventive neuroprotectants to treat neurodegenerative disorders like AD, due to their low toxicity and general beneficial effects on human health with their anti-inflammatory and antioxidant features. In this work we describe regioselective synthesis of 7-O-ester hybrids of the flavonoid taxifolin with the phenolic acids cinnamic and ferulic acid, namely 7-O-cinnamoyltaxifolin and 7-O-feruloyltaxifolin. The compounds show pronounced overadditive neuroprotective effects against oxytosis, ferroptosis and ATP depletion in the murine hippocampal neuron HT22 cell model. Furthermore, 7-O-cinnamoyltaxifolin and 7-O-feruloyltaxifolin reduced LPS-induced neuroinflammation in BV-2 microglia cells as assessed by effects on the levels of NO, IL6 and TNF alpha. In all in vitro assays the 7-O-esters of taxifolin and ferulic or cinnamic acid showed strong overadditive activity, significantly exceeding the effects of the individual components and the equimolar mixtures thereof, which were almost inactive in all of the assays at the tested concentrations. In vivo studies confirmed this overadditive effect. Treatment of an AD mouse model based on the injection of oligomerized A beta(25)(-)(35) peptide into the brain to cause neurotoxicity and subsequently memory deficits with 7-O-cinnamoyltaxifolin or 7-O-feruloyltaxifolin resulted in improved performance in an assay for short-term memory as compared to vehicle and mice treated with the respective equimolar mixtures. These results highlight the benefits of natural product hybrids as a novel compound class with potential use for drug discovery in neurodegenerative diseases due to their pharmacological profile that is distinct from the individual natural components.

  DOI：

  10.1016/j.redox.2019.101378

文献信息

• 7-O-Esters of taxifolin with pronounced and overadditive effects in neuroprotection, anti-neuroinflammation, and amelioration of short-term memory impairment in vivo
  作者：Sandra Gunesch、Matthias Hoffmann、Carolina Kiermeier、Wolfgang Fischer、Antonio F.M. Pinto、Tangui Maurice、Pamela Maher、Michael Decker

  DOI：10.1016/j.redox.2019.101378

  日期：2020.1

  Alzheimer's disease (AD) is a multifactorial disease and the most common form of dementia. There are no treatments to cure, prevent or slow down the progression of the disease. Natural products hold considerable interest for the development of preventive neuroprotectants to treat neurodegenerative disorders like AD, due to their low toxicity and general beneficial effects on human health with their anti-inflammatory and antioxidant features. In this work we describe regioselective synthesis of 7-O-ester hybrids of the flavonoid taxifolin with the phenolic acids cinnamic and ferulic acid, namely 7-O-cinnamoyltaxifolin and 7-O-feruloyltaxifolin. The compounds show pronounced overadditive neuroprotective effects against oxytosis, ferroptosis and ATP depletion in the murine hippocampal neuron HT22 cell model. Furthermore, 7-O-cinnamoyltaxifolin and 7-O-feruloyltaxifolin reduced LPS-induced neuroinflammation in BV-2 microglia cells as assessed by effects on the levels of NO, IL6 and TNF alpha. In all in vitro assays the 7-O-esters of taxifolin and ferulic or cinnamic acid showed strong overadditive activity, significantly exceeding the effects of the individual components and the equimolar mixtures thereof, which were almost inactive in all of the assays at the tested concentrations. In vivo studies confirmed this overadditive effect. Treatment of an AD mouse model based on the injection of oligomerized A beta(25)(-)(35) peptide into the brain to cause neurotoxicity and subsequently memory deficits with 7-O-cinnamoyltaxifolin or 7-O-feruloyltaxifolin resulted in improved performance in an assay for short-term memory as compared to vehicle and mice treated with the respective equimolar mixtures. These results highlight the benefits of natural product hybrids as a novel compound class with potential use for drug discovery in neurodegenerative diseases due to their pharmacological profile that is distinct from the individual natural components.