Abstract
Bisbenzimidazoles, have shown various biological activities viz. antineoplastic, anti-tumor, anti-fungal, anti-inflammatory, hypoglycemia treatment and physiological disorders, besides other pharmacological effects. Structural modifications of the benzimidazole nucleus are being carried out in several ways in order to anticipate enhanced biological activities. The synthesis of bis-benzimidazoles is one such attempt, where the two benzimidazole nuclei are united together using a variety of linkers and points of linkages. These structural permutations and combinations have given a large number of available bisbenzimidazole compounds for pharmacological and biological research. A number of reviews have been published over the past decade on the compilation of the biological activities of bisbenzimidazoles. However, we could not locate any report covering the general strategies followed for the synthesis of these compounds. The present review provides an in depth view of synthetic routes for preparation of symmetric bisbenzimidazoles.
Keywords: Bisbenzimidazole, o-phenylenediamine, linkers, one pot synthesis.
Mini-Reviews in Organic Chemistry
Title:Synthetic Routes to Symmetric Bisbenzimidazoles: A Review
Volume: 9 Issue: 4
Author(s): Leena Khanna, Siva S. Panda and Pankaj Khanna
Affiliation:
Keywords: Bisbenzimidazole, o-phenylenediamine, linkers, one pot synthesis.
Abstract: Bisbenzimidazoles, have shown various biological activities viz. antineoplastic, anti-tumor, anti-fungal, anti-inflammatory, hypoglycemia treatment and physiological disorders, besides other pharmacological effects. Structural modifications of the benzimidazole nucleus are being carried out in several ways in order to anticipate enhanced biological activities. The synthesis of bis-benzimidazoles is one such attempt, where the two benzimidazole nuclei are united together using a variety of linkers and points of linkages. These structural permutations and combinations have given a large number of available bisbenzimidazole compounds for pharmacological and biological research. A number of reviews have been published over the past decade on the compilation of the biological activities of bisbenzimidazoles. However, we could not locate any report covering the general strategies followed for the synthesis of these compounds. The present review provides an in depth view of synthetic routes for preparation of symmetric bisbenzimidazoles.
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Khanna Leena, Panda S. Siva and Khanna Pankaj, Synthetic Routes to Symmetric Bisbenzimidazoles: A Review, Mini-Reviews in Organic Chemistry 2012; 9 (4) . https://dx.doi.org/10.2174/157019312804699474
DOI https://dx.doi.org/10.2174/157019312804699474 |
Print ISSN 1570-193X |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-6298 |
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