Synthesis and evaluation of naphthyl bearing 1,2,3-triazole analogs as antiplasmodial agents, cytotoxicity and docking studies
作者:Saikrishna Balabadra、MeenaKumari Kotni、Vijjulatha Manga、Aparna Devi Allanki、Rajesh Prasad、Puran Singh Sijwali
DOI:10.1016/j.bmc.2016.10.029
日期:2017.1
Novel series of naphthyl bearing 1,2,3-triazoles (4a-t) were synthesized and evaluated for their in vitro antiplasmodial activity against pyrimethamine (Pyr)-sensitive and resistant strains of Plasmodium falciparum. The synthesized compounds were assessed for their cytotoxicity employing human embryonic kidney cell line (HEK-293), and none of them was found to be toxic. Among them 4j, 4k, 4l, 4m, 4n, 4t exhibited significant antiplasmodial activity in both strains, of which compounds 4m, 4n and 4t (similar to 3.0fold) displayed superior activity to Pyr against resistant strain. Pyr and selected compounds (4n, 4p and 4t) that repressed parasite development also inhibited PfDHFR activity of the soluble parasite extract, suggesting that anti-parasitic activity of these compounds is a result of inhibition of the parasite DHFR. In silico studies suggest that activity of these compounds might be enhanced due to p-p stacking. (C) 2016 Elsevier Ltd. All rights reserved.