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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,  1 H NMR,  13 C 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.

Design, Synthesis and Biological Evaluation of Novel Furan & Thiophene Containing Pyrazolyl Pyrazolines as Antimalarial Agents