合成,抗结核概况和分子对接研究,基于quinazolinone的皮里丁衍生物对抗耐药结核病
M S Raghu1, K Yogesh Kumar2, T Shamala3
1Department of Chemistry, New Horizon College of Engineering, Bengaluru, India.
Journal of biomolecular structure & dynamics
|June 1, 2023
概括
新的quinazolinone-pyridine化合物对对药物敏感和耐药的Mycobacterium结核病菌株表现出强大的抗菌活性. 化合物4e和4f表现出具有低毒性的有希望的抗结核作用,表明它们可能是MmpL3抑制剂.
科学领域:
- 药用化学 医学化学
- 有机合成 有机合成
- 药物发现 药物发现 药物发现
背景情况:
- 结核病 (TB) 仍然是一个重大的全球健康威胁,由耐药性Mycobacterium tuberculosis (Mtb) 菌株驱动.
- 迫切需要新的治疗药物来对抗抗药物耐药结核病的日益流行.
- 基纳索林衍生物已经成为抗菌细菌药物开发的有希望的支架.
研究的目的:
- 合成和评估基于quinazolinone的新型氨酸衍生物的抗菌活性.
- 为了识别对药物敏感和耐药Mtb菌株的强效化合物.
- 研究合成化合物的作用机制和安全概况.
主要方法:
- 基于quinazolinone的皮里丁衍生物 (4a-j化合物) 的合成.
- 使用最小抑制度 (MIC) 试验对各种Mtb菌株进行抗菌细菌活性测试.
- 使用Vero和RAW264.7细胞系进行细胞毒性评估.
- 针对MmpL3蛋白的分子对接研究.
- 使用理论计算预测物理化学性质.
主要成果:
- 化合物4e和4f对药物敏感和耐药的Mtb菌株表现出显著的抗菌活性,MIC值从0.31到19.13μM不等.
- 在测试的最高度下,没有一种合成的化合物对Vero细胞具有毒性.
- 分子对接揭示了MmpL3活性部位内化合物4b,4e和4f的有利结合相互作用,表明MmpL3是潜在的目标.
- 化合物4e (三甲基) 和4f (亚部分) 被确定为候选物.
结论:
- 基纳利诺基的氨酸衍生物,特别是4e和4f化合物,显示出作为新型抗结核病剂的巨大潜力.
- 这些已识别的化合物具有良好的安全性,并向MmpL3蛋白,这是结核病治疗的有效标.
- 这些化合物的进一步开发可能会导致针对结核病的新治疗策略.
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