The aim of the current work is to synthesize the new heterocyclic pentacyclic condensed systems that combine benzothiophen and benzimidazole/triazole into one molecule. The dibenzothiophene was taken as an initial compound and by consistent “extension” was annihilated the imidazole and triazole nucleuses. As a result two new pentacyclic systems were produced: 3H-, 7H-diimidazole[4,5-b][5,4-g] dibenzothiophene-5,5-dioxide and 3H-, 7H-ditriazole[4,5-b][5,4-g] dibenzothiophene-5,5-dioxide with the promising antimi-crobial activity. Their spectral characteristics were studied.
Khabnadideh, S., Rezaei, Z., Khalafi-Nezhad, A., Pakshir, K., Roosta, A. and Baratzadeh, Z. (2009) Design and Synthesis of Imidazole and Benzimidazole Derivatives as Antifungal Agents. Anti-Infective Agents, 7, 215-218.
Mentes, E., Yilmaz, F., Beris, F.S., Bekircan, O. and Kahveci, B. (2015) Microwave-Assisted Synthesis of Some New Benzimidazole Derivatives with Their Antimicrobial Activity. Current Microwave Chemistry, 2, 32-39.
Yurttas, L., Ozkay, Y., Karaca, H., Tunali, Y. and Kaplancikli, Z.A. (2013) Synthesis and Antimicrobial Evaluation of Some 2,5-Disubstituted Benzimidazole Derivatives. Letters in Drug Design & Discovery, 10, 486-491.
Maisuradze, M., Ugulava, G., Bolkvadze, N., Phalavandishvili, G., Gakhokidze, N. and Matnadze, M. (2013) Some New Derivatives of 3H-Benzo (b)Furobenzotriazole. Journal of Chemistry and Chemical Engineering, 7, 621-625.
Maisuradze, M., Khoshtaria, T., Gakhokidze, N. and Kurkovskaia, L. (2008) Synthesis of Benzo[b]Thieno[3,2-e]Benzimidazoles, First Representatives of a New Heterocyclic System. Chemistry of Heterocyclic Compounds, 44, 1024-1026.
Gilman, H. and Esway, D.L. (1952) The Oxidation of Dibenzo Thiofene and Phenoxathiin with Hydrogen Peroxide. Journal of the American Chemical Society, 74, 2021-2025. https://doi.org/10.1021/ja01128a046