SYNTHESIS AND HALOGENATION OF 2-METHYLIMIDAZO[1,2-<i>a</i>]PYRIDINE. ANTIMICROBIAL ACTIVITY OF 3-BROMO-2-METHYL-1<i>Н</i>-IMIDAZO[1,2-<i>a</i>]PYRIDINIUM BROMIDE

Authors

  • Елена В. Калита South Ural State University (National Research University), 76 Lenina Ave., Chelyabinsk 454080, Russia Moscow Institute of Physics and Technology (National Research University), 9 Institutskiy Per., Dolgoprudny 141701, Moscow Region, Russia
  • Дмитрий Г. Ким South Ural State University (National Research University), 76 Lenina Ave., Chelyabinsk 454080, Russia
  • Елизавета М. Крынина South Ural State University (National Research University), 76 Lenina Ave., Chelyabinsk 454080, Russia
  • Владимир В. Шарутин South Ural State University (National Research University), 76 Lenina Ave., Chelyabinsk 454080, Russia
  • Нина М. Шлепотина South Ural State Medical University, Ministry of Health of the Russian Federation, 64 Vorovskogo St., Chelyabinsk 454092, Russia
  • Олег Л. Колесников South Ural State Medical University, Ministry of Health of the Russian Federation, 64 Vorovskogo St., Chelyabinsk 454092, Russia
  • Юлия С. Шишкова South Ural State Medical University, Ministry of Health of the Russian Federation, 64 Vorovskogo St., Chelyabinsk 454092, Russia
  • Маргарита В. Пешикова South Ural State Medical University, Ministry of Health of the Russian Federation, 64 Vorovskogo St., Chelyabinsk 454092, Russia

DOI:

https://doi.org/10.1007/6593

Keywords:

2-aminopyridine, 3-halo-2-methyl-1Н-imidazo[1, 2-a]pyridinium trihalides and halides, 2-methylimidazo[1, 2-a]pyridine, alkylation, antimicrobial activity, halogenation.

Abstract

Imidazo[1,2-a]pyridine derivatives have been shown to possess a broad range of biological activity. 2-Amino-1-propargylpyridinium and 2-amino-1-(2-bromoallyl)pyridinium bromides, the structures of which were established on the basis of X-ray structural analysis, reacted with sodium methoxide, leading to the formation of 2-methylimidazo[1,2-a]pyridine. 2-Methylimidazo[1,2-a]pyridine further reacted with bromine and iodine, providing 3-halo-2-methyl-1H-imidazo[1,2-a]pyridinium trihalides, the structure of which was confirmed by X-ray structural analysis. 3-Halo-2-methyl-1H-imidazo[1,2-a]pyridinium halides were obtained from the respective trihalides. 3-Bromo-2-methyl-1H-imidazo[1,2-a]pyridinium bromide showed antimicrobial properties against Staphylococcus aureus at the concentrations of 2700 and 675 μg/ml.

Published

2022-05-18

Issue

Section

Original Papers