Abstract

In search for novel compounds targeting Malaria, based on the in silico molecular docking binding affinity data, the novel furans containing pyrazolyl chalcones (3a-d) and pyrazoline derivatives (4a-d) were synthesized. The formation of the synthesized compound were confirmed by spectral analysis like IR, ¹H NMR, ¹³C NMR and mass spectrometry. Compounds with thiophene and pyrazoline ring 4b (0.47 μM), 4c (0.47 μM) and 4d (0.21 μM) exhibited excellent anti-malarial activity against Plasmodium falciparum compared with standard antimalarial drug Quinine (0.83 μM). To check the selectivity furthermore, compounds were tested for antimicrobial activity and none of the synthesized compound exhibited significant potency compared with the standard antibacterial drug Chloramphenicol and antifungal drug Nystatin respectively. So, it can be resolved that the produced compounds show selectively toward antimalarial activity and have the potential to be explored further.

摘要

为了寻找针对疟疾的新型化合物，基于计算机分子对接结合亲和力数据，合成了含有吡唑基查耳酮 ( 3a-d ) 和吡唑啉衍生物 ( 4a-d ) 的新型呋喃。合成化合物的形成通过光谱分析如IR、¹ H NMR、¹³ C NMR和质谱来确认。噻吩和吡唑啉环化合物4b (0.47 μM)、4c (0.47 μM) 和4d (0.21 μM) 对恶性疟原虫表现出优异的抗疟疾活性与标准抗疟药奎宁（0.83 μM）相比。为了进一步检查选择性，对化合物进行了抗菌活性测试，与标准抗菌药物氯霉素和抗真菌药物制霉菌素相比，合成的化合物均未表现出显着的效力。因此，可以确定所产生的化合物具有选择性的抗疟活性，具有进一步探索的潜力。