Synthesis and antileishmanial activity of new imidazolidin-2-one derivatives
摘要:
N-3-acyl, arylsulfonyl and benzyl derivatives of N-1-(4,6-dimethylpyridin-2-yl), (5-methylthiazol-2-yl) or (3-methylisoxazol-5-yl)imidazolidin-2-ones were synthesized and evaluated as potential antileishmanial agents. Determination of their cytotoxic effect was carried out using MRC5 cells. Two compounds, 1-(4,6-dimethylpyridin-2-yl)-3-(napht-2-ylsulfonyl)imidazolidin-2-one, 18, and 1-(3-methylisoxazol-5-yl)-3-(4-bromobenzyl)imidazo-lidin-2-one, 25, exerted significant antileishmanial activity in promastigotes of Leishmania (L) mexicana and Leishmania infantum, with IC50 in the range of 8-16 mumol L-1. Antiparasitical activity of the less toxic compound, 25, was confirmed against intracellular amastigote of L. mexicana, the clinical relevant stage; its low IC50 value (2.4 mumol L-1) and its favourable toxicity/activity index (11) constitute encouraging results for ongoing pharmacomodulation in the corresponding subseries. (C) 2003 Editions scientifiques et medicales Elsevier SAS. All rights reserved.
Synthesis and antileishmanial activity of new imidazolidin-2-one derivatives
摘要:
N-3-acyl, arylsulfonyl and benzyl derivatives of N-1-(4,6-dimethylpyridin-2-yl), (5-methylthiazol-2-yl) or (3-methylisoxazol-5-yl)imidazolidin-2-ones were synthesized and evaluated as potential antileishmanial agents. Determination of their cytotoxic effect was carried out using MRC5 cells. Two compounds, 1-(4,6-dimethylpyridin-2-yl)-3-(napht-2-ylsulfonyl)imidazolidin-2-one, 18, and 1-(3-methylisoxazol-5-yl)-3-(4-bromobenzyl)imidazo-lidin-2-one, 25, exerted significant antileishmanial activity in promastigotes of Leishmania (L) mexicana and Leishmania infantum, with IC50 in the range of 8-16 mumol L-1. Antiparasitical activity of the less toxic compound, 25, was confirmed against intracellular amastigote of L. mexicana, the clinical relevant stage; its low IC50 value (2.4 mumol L-1) and its favourable toxicity/activity index (11) constitute encouraging results for ongoing pharmacomodulation in the corresponding subseries. (C) 2003 Editions scientifiques et medicales Elsevier SAS. All rights reserved.