Synthesis and evaluation of 2,4,6-trisubstituted pyrimidine derivatives as novel antileishmanial agents
作者:S. K. Patle、N. Kawathekar、M. Zaveri、P. Kamaria
DOI:10.1007/s00044-012-0167-y
日期:2013.4
A series of new 2,4,6-trisubstituted pyrimidine derivatives 8(a-j) were synthesized by reacting substituted chalcones containing imidazole 6(a-d) and benzimidazole 7(a-f) with guanidine hydrochloride in the presence of strong base. Substituted chalcones were synthesized by reacting 4-(1H-imidazol-1-yl)benzaldehyde or 4-(1H-benzo[d]imidazol-1-yl)benzaldehyde with different substituted acetophenones in the presence of 40 % NaOH in methanol. The synthesized compounds were confirmed by IR, (HNMR)-H-1, and mass spectral data and screened for antileishmanial activity. Antileishmanial activity was performed against Leishmania donovani parasite, and percentage lysis inhibition were calculated by meglumine antimoliate taking a positive control and chloroform (0.1 % CHCl3) treatment served as control. Among all the compounds, 8h and 8j exhibited 50-57 % inhibition against promastigotes, thus providing new structural lead for antileishmanials.