Abstract
A novel series of hydroxy and non-hydroxy long chain substituted 1,3,4-oxadiazole moiety bearing 2-methyl-1H-benzimidazoles 15(a–d) have been synthesized from cyclization reaction of 2-(2-methyl-1H-benzimidazol-1-yl) acetohydrazide (13) with different unsaturated hydroxy and non-hydroxy fatty esters in the presence of phosphorus oxychloride and product obtained in appreciable yield. Compound (13) was synthesized from the corresponding ethyl (2-methyl-1H-benzimidazol-1-yl) acetate (12) and 2-methyl-1H-benzimidazole (11). All the synthesized compounds were characterized with the help of IR, 1H NMR, 13C NMR, and mass spectral studies. These compounds were tested for cytotoxic (or antiproliferative) activity against normal human blood cells (PBMCs), Hep3B (human hepatocellular carcinoma), MCF 7 (human breast adenocarcinoma), and HeLa (human cervical carcinoma) cell lines.
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