Synthesis of some new benzimidazolecarboxamides and evaluation of their antimicrobial activity.
A series of 1,2-disubstituted benzimidazole-5(6)-carboxamides was prepared and evaluated in vitro for antimicrobial activity against Staphyloccus aureus, Escherichia coli and Candida albicans. The precursor benzimidazolecarboxylic acids 4a-c and 9a-c were prepared via oxidative condensation of diaminobenzoic acids with aldehydes and via several steps over the 2(1H)-benzimidazolones, respectively. All acids were converted to their acyl chlorides with SOCl2, then amidified with several N,N'-dialkylaminoethyl derivatives. Compounds 8a-c, 20 and 22 exhibited the best activity.
Göker
H
H
Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ankara University, Turkey. goker@pharmacy.ankara.edu.tr
Tunçbilek
M
M
Ayhan
G
G
Altanlar
N
N
D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D001562:Benzimidazoles / Q000138:chemical synthesis* / Q000494:pharmacology; D002176:Candida albicans / Q000187:drug effects*; D004926:Escherichia coli / Q000187:drug effects*; D008826:Microbial Sensitivity Tests; D013211:Staphylococcus aureus / Q000187:drug effects*
D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents; D001562:Benzimidazoles