尼弗洛林衍生物的合成和抗氧化活性
Qian Xiao1, YuXiang Song2, Meng Yang1
1College of medicine, Heilongjiang University of traditional Chinese Medicine, Harbin, China.
Bioorganic chemistry
|November 20, 2025
概括
研究人员合成了新的paeoniflorin衍生物来提高生物可用性和抗氧化能力. 衍生品 15, 2 衍生品 15, 2 衍生品
科学领域:
- 自然产品化学 自然产品化学
- 药用化学 医学化学
- 神经药理学神经药理学
背景情况:
- 佩奥尼佛洛林具有神经保护性,但其生物可用性较差.
- 提高佩奥尼弗洛林的生物可用性对于最大限度地发挥其治疗潜力至关重要.
- 开发提高尼佛林功效的策略是一个活跃的研究领域.
研究的目的:
- 设计和合成具有改善生物可用性的新型雌性化化衍生物.
- 评估这些衍生物的抗氧化活性.
- 为潜在的治疗应用确定一种具有增强抗氧化能力的衍生物.
主要方法:
- 通过组保护和基化,合成佩奥尼佛洛林的化衍生物.
- 在体外抗氧化活性测定,包括DPPH和ABTS激素清除.
- 在体外基于细胞的测定评估细胞保护作用,MDA水平,SOD活性,ROS清除和Nrf2通路调节.
主要成果:
- 一系列的化化衍生物被成功合成.
- 2',6'-Bis-O-o-Fluorobenzoyl-paeoniflorin (15) 显示出显著的抗氧化活性.
- 与氨酸相比,衍生品15表现出优越的自由基清除,增强的细胞保护,降低MDA,增加SOD活性和有效的ROS清除,部分是通过Nrf2调节.
结论:
- 化,特别是o-fluorobenzoyl组的引入,有效地提高了paeoniflorin的脂性和抗氧化功效.
- 衍生品15代表了一位有希望的候选人,可以改善paeoniflorin的神经保护和抗氧化剂的治疗潜力.
- 需要进一步研究衍生品15的作用机制和体内疗效.
相关概念视频
Oxidation of Phenols to Quinones
4.5K
In the presence of oxidizing agents, phenols are oxidized to quinones. Quinones can be easily reduced back to phenols using mild reducing agents. The electron-donating hydroxyl group enhances the reactivity of the aromatic ring, enabling oxidation of the ring even in the absence of an α hydrogen.
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
4.5K
Adrenergic Agonists: Chemistry and Structure-Activity Relationship
3.8K
Adrenergic agonists' structure-activity relationship (SAR) determines their selectivity and efficacy. These agonists comprise a phenylethylamine moiety with an aromatic ring and an ethylamine side chain.
Aromatic ring substitutions: Substituting the aromatic ring with –OH groups at positions 3 and 4 yields catecholamines (e.g., epinephrine), which have a high affinity for adrenoceptors. Hydrogen bonding between –OH groups and receptors enhances adrenergic activity.
Separation of...
Aromatic ring substitutions: Substituting the aromatic ring with –OH groups at positions 3 and 4 yields catecholamines (e.g., epinephrine), which have a high affinity for adrenoceptors. Hydrogen bonding between –OH groups and receptors enhances adrenergic activity.
Separation of...
3.8K

![Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F60786.jpg&w=3840&q=50)
