“…2-Methylbenzothiazoles with various substituents in the benzene ring were synthesized (E. D. Sych, I. K. Ushenko) [7][8][9][10]. Benzimidazoles with various substituents, including heterocyclic substituents, were obtained (V. M. Zubarovskii) [11][12][13][14][15]. Pyridines and quinolines containing substituents with triple bonds at positions 2 and 4 and used for the production of dyes were obtained (G. G. Dyadyusha) [16].…”