Synthesis and Insight into the Structure–Activity Relationships of Chalcones as Antimalarial Agents
作者:Narender Tadigoppula、Venkateswarlu Korthikunta、Shweta Gupta、Papireddy Kancharla、Tanvir Khaliq、Awakash Soni、Rajeev Kumar Srivastava、Kumkum Srivastava、Sunil Kumar Puri、Kanumuri Siva Rama Raju、Wahajuddin、Puran Singh Sijwali、Vikash Kumar、Imran Siddiqi Mohammad
DOI:10.1021/jm300588j
日期:2013.1.10
licorice, is the most promising antimalarial compound reported so far. In continuation of our drug discovery program, we isolated two similar chalcones, medicagenin (II) and munchiwarin (III), from Crotalaria medicagenia, which exhibited antimalarial activity against Plasmodium falciparum. A library of 88 chalcones were synthesized and evaluated for their in vitro antimalarial activity. Among these, 67,
从中国甘草的根中分离得到的Licochalcone A(I)是迄今为止报道的最有前途的抗疟化合物。在继续我们的药物发现计划时,我们从猪屎豆属中分离了两个类似的查耳酮,medicageninin(II)和munchiwarin(III),它们对恶性疟原虫具有抗疟活性。合成了88个查耳酮的文库,并对其体外抗疟活性进行了评估。在这些中,67,68,74,77,和78显示出在体外对抗疟疾活性良好恶性疟原虫具有低细胞毒性的3D7和K1菌株。这些查耳酮还显示出寄生虫约瑟氏疟原虫(N-67株)感染的瑞士小鼠的寄生虫病减少和存活时间增加。药代动力学研究表明,不良的ADME特性导致口服生物利用度低。分子对接研究揭示了这些抑制剂在falcipain-2(FP-2)酶的活性位点的结合方向。化合物67,68,和78显示出对主要血红蛋白降解半胱氨酸适度抑制活性蛋白酶FP-2。