A facile synthesis and microtubule-destabilizing properties of 4-(1H-benzo[d]imidazol-2-yl)-furazan-3-amines

A series of 4-(1H-benzo[d]imidazol-2-yl)-furazan-3-amines (BIFAs) were prepared in good yields (60–90% for each reaction step) via a novel procedure from aminofurazanyl hydroximoyl chlorides and o-diaminobenzenes. The synthetic sequence was run under mild reaction conditions, it was robust and did n...

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Published inEuropean journal of medicinal chemistry Vol. 94; pp. 237 - 251
Main Authors Stepanov, Andrei I., Astrat'ev, Alexander A., Sheremetev, Aleksei B., Lagutina, Nataliya K., Palysaeva, Nadezhda V., Tyurin, Aleksei Yu, Aleksandrova, Nataliya S., Sadchikova, Nataliya P., Suponitsky, Kyrill Yu, Atamanenko, Olga P., Konyushkin, Leonid D., Semenov, Roman V., Firgang, Sergei I., Kiselyov, Alex S., Semenova, Marina N., Semenov, Victor V.
Format Journal Article
LanguageEnglish
Published ISSY-LES-MOULINEAUX Elsevier Masson SAS 13.04.2015
Elsevier
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Summary:A series of 4-(1H-benzo[d]imidazol-2-yl)-furazan-3-amines (BIFAs) were prepared in good yields (60–90% for each reaction step) via a novel procedure from aminofurazanyl hydroximoyl chlorides and o-diaminobenzenes. The synthetic sequence was run under mild reaction conditions, it was robust and did not require extensive purification of intermediates or final products. Furthermore, there was no need for protection of reactive moieties allowing for the parallel synthesis of diverse BIFA derivatives. Subsequent biological evaluation of the resulting compounds revealed their anti-proliferative effects in the sea urchin embryo model and in cultured human cancer cell lines. The most active compounds showed 0.2–2 μM activities in both assay systems. The unsubstituted benzene ring of the benzoimidazole template as well as the unsubstituted amino group in the furazan ring were essential prerequisites for the antimitotic activity of BIFAs. Compound 57 bearing the 2-chlorophenyl acetamide substituent at the nitrogen atom of the imidazole ring was the most active molecule in the examined set. [Display omitted] •A series of benzoimidazolyl furazanamines were prepared via a novel procedure.•The synthesis was run under mild conditions.•Evaluation for antitubulin activity in the sea urchin embryo model.•Unsubstituted benzene ring and furazan amino group were essential for activity.•The compounds showed cytotoxicity in NCI60 anticancer drug screen.
Bibliography:Russian Science Foundation
ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 23
ISSN:0223-5234
1768-3254
DOI:10.1016/j.ejmech.2015.02.051