期刊
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
卷 43, 期 12, 页码 2877-2890出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.ejmech.2008.02.010
关键词
Benzimidazoles; Amidines; Photocyclization; Antitumor evaluation; DNA binding
资金
- Ministry of Science, Education and Sports of the Republic of Croatia [125-0982464-1356, 098-0982464-2514, 098-0982914-2918]
A series of amidino-substituted benzimidazoles, related to furyl-phenyl- and thienyl-phenyl-acrylates, naphthofurans and naphthothiophenes were prepared, their antitumor evaluation and interactions with ct-DNA have been investigated. All tested compounds show differential and strong antitumor activity without apparent difference depending on their structures. Interestingly, the MCF-7 tumor cell line is highly sensitive to all compounds. Compounds 6-9 showed noticeable selectivity in regard to normal fibroblasts (WI 38). Compounds 4-9 interact with ct-DNA by more binding modes, whose mutual distribution is dependent on the compound/DNA ratio. The acyclic 4-6 and cyclic compound 7 interact mostly within the minor groove of DNA, although partial intercalation of 6 and 7 cannot be excluded. The cyclic compounds 8 and 9 intercalate between DNA base pairs at high excess of DNA over compounds. (C) 2008 Elsevier Masson SAS. All fights reserved.
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