Synthesis, Anticonvulsant Activity, and SAR Study of Novel 4-Quinazolinone Derivatives
作者:Nada A. Noureldin、Hend Kothayer、El-Sayed M. Lashine、Mohamed M. Baraka、Wafaa El-Eraky、Sally A. El Awdan
DOI:10.1002/ardp.201600332
日期:2017.2
and the anticonvulsant activity. Synthesis of the target compounds was accomplished in four steps starting from the reaction between N‐methyl isatoic anhydride and the appropriate amino acid. Then, the carboxylic acid group was utilized to synthesize the required final structures. The new quinazolinone derivatives were evaluated for their anticonvulsant activity according to the Anticonvulsant Drug Development
N-(4-取代苯基)-4-(1-甲基(或1,2-二甲基)-4-氧代-1,2-二氢喹唑啉-3(4H)-基)-链烷酰胺(5a-j)系列和4-氯-N'-((1-甲基(或1,2-二甲基)-4-氧代-1,2-二氢喹唑啉-3(4H)-基)-烷酰基)苯甲酰肼(6a-f)关于先前报道的抗惊厥活性的基本结构特征。合成的喹唑啉-4(3H)-酮中掺入了几种氨基酸,以提高其生物利用度和抗惊厥活性。目标化合物的合成分四步完成,从 N-甲基靛红酸酐和合适的氨基酸之间的反应开始。然后,利用羧酸基团合成所需的最终结构。根据抗惊厥药物开发 (ADD) 计划协议,评估了新型喹唑啉酮衍生物的抗惊厥活性。16种新型喹唑啉酮类均表现出良好的抗惊厥活性;特别是 5f、5b 和 5c 与参考药物相比显示出优异的抗惊厥活性,ED50 值分别为 28.90、47.38 和 56.40 mg/kg。