4-Arylamino-6-nitroquinazolines: Synthesis and their activities against neglected disease leishmaniasis
作者:Syed Muhammad Saad、Nida Ghouri、Shahnaz Perveen、Khalid Mohammed Khan、M. Iqbal Choudhary
DOI:10.1016/j.ejmech.2015.11.016
日期:2016.1
4-Arylamino-6-nitroquinazolines (2-25) were synthesized and evaluated for their leishmanicidal activities against Leishmania major promastigotes in vitro with IC50 values = 1.87-61.48 mu M. Among the twenty four synthetic derivatives, 4-[4'-(methylsulfanyl)phenyljamino-6-nitroquinazoline (21), and 4-(2'-methoxyphenyl)amino-6-nitroquinazoline (8) showed excellent antileishmanial activities with IC50 values 1.87 +/- 0.31 and 437 +/- 0.02 mu M, respectively, more active than the standard drug, pentamidine (IC50 = 5.09 +/- 0.09 mu M). Compound 16 (IC50 = 6.53 +/- 0.21 mu M) displayed an activity comparable to the standard. Compounds 15 (IC50 = 9.04 +/- 0.03 mu M), 18 (IC50 = 12.28 +/- 0.18 mu M),14 (IC50 = 19.87 +/- 0.22 mu M), and 5 (IC50 = 24.03 +/- 2.71 mu M) also showed good activities. (C) 2015 Elsevier Masson SAS. All rights reserved.