Design, synthesis and biological evaluation of 4-aminoquinoline-guanylthiourea derivatives as antimalarial agents
作者:Shweta Bhagat、Minhajul Arfeen、Gourav Das、Mridula Ramkumar、Shabana I. Khan、Babu L. Tekwani、Prasad V. Bharatam
DOI:10.1016/j.bioorg.2019.103094
日期:2019.10
and docking score (−9.63 to −7.36 kcal/mmol) were comparable to WR99210 (−9.89 kcal/mol). From these results nine molecules were selected for synthesis. In vitro analysis of these synthesized compounds reveal that out of the nine molecules, eight show antimalarial activity in the range of 0.61–7.55 μM for PfD6 strain and 0.43–8.04 μM for PfW2 strain. Further, molecular dynamics simulations were performed
鸟嘌呤硫脲(GTU)已被确定为重要的抗叶酸抗疟药效基团,而4-氨基喹诺酮类药物具有抗疟活性。在本工作中,使用Pf DHFR酶和血红素单元进行分子对接分析,设计了带有4-氨基喹啉和GTU部分的分子。对接结果表明,必要的相互作用(Asp54和Ile14)和对接得分(-9.63至-7.36 kcal / mmol)与WR99210(-9.89 kcal / mol)相当。从这些结果中,选择了九个分子进行合成。在体外,这些合成的化合物的分析揭示出了9个分子的,八显示在0.61-7.55微米的范围抗疟活性Pf的D6应变和0.43-8.04μM为Pf的W2株。此外,对活性最高的分子进行了分子动力学模拟,以建立这些化合物和参考配体与恶性疟原虫二氢叶酸还原酶(Pf DHFR)的比较结合相互作用。