Structure–activity relationships of novel heteroaryl-acrylonitriles as cytotoxic and antibacterial agents
摘要:
Eighteen new 2,6-disubstituted acrylonitriles and two new (benzimidazol-1-yl)-acetamide derivatives were prepared and screened for antibacterial and cytotoxic activities on 12 human cancer cell lines. Based on the lead structure 2-(benzimidazol-2-yl)-3-(5-nitrothiophen-2-yl) acrylonitrile it was found that placement of methyl groups at the 5,6 positions of the benzimidazole ring lead to a 3-fold increase in overall cytotoxic activity. Replacing the nitrothiophene for pyridine reduced cytotoxic activity as did replacing the nitro group for a methoxy group. Cytotoxic activity was only slightly reduced when the benzimidazole ring was replaced by a imidazo[4,5-b]pyridine or a benzthiazole ring but replacement by benzoxazole led to a substantial decrease in activity. Moving the acrylonitrile group from position 2 to position 1 of the benzimidazole ring also resulted in moderately active compounds. (Benzimidazol-1-yl)acetamides showed only modest activity. The structure-activity relationships found in the cytotoxicity studies are mirrored in the results of the antibacterial experiments. (C) 2007 Elsevier Masson SAS. All rights reserved.
SAWLEWICZ J.; MILCZARSKA B.; MANOWSKA W., POL. J. PHARMACOL. AND PHARM., 1975, 27, NO 2, 187-201
作者:SAWLEWICZ J.、 MILCZARSKA B.、 MANOWSKA W.
DOI:——
日期:——
Structure–activity relationships of novel heteroaryl-acrylonitriles as cytotoxic and antibacterial agents
作者:Franciszek Sączewski、Agnieszka Stencel、Andrzej M. Bieńczak、Karolina A. Langowska、Martin Michaelis、Władysław Werel、Rafał Hałasa、Przemyslaw Reszka、Patrick J. Bednarski
DOI:10.1016/j.ejmech.2007.11.017
日期:2008.9
Eighteen new 2,6-disubstituted acrylonitriles and two new (benzimidazol-1-yl)-acetamide derivatives were prepared and screened for antibacterial and cytotoxic activities on 12 human cancer cell lines. Based on the lead structure 2-(benzimidazol-2-yl)-3-(5-nitrothiophen-2-yl) acrylonitrile it was found that placement of methyl groups at the 5,6 positions of the benzimidazole ring lead to a 3-fold increase in overall cytotoxic activity. Replacing the nitrothiophene for pyridine reduced cytotoxic activity as did replacing the nitro group for a methoxy group. Cytotoxic activity was only slightly reduced when the benzimidazole ring was replaced by a imidazo[4,5-b]pyridine or a benzthiazole ring but replacement by benzoxazole led to a substantial decrease in activity. Moving the acrylonitrile group from position 2 to position 1 of the benzimidazole ring also resulted in moderately active compounds. (Benzimidazol-1-yl)acetamides showed only modest activity. The structure-activity relationships found in the cytotoxicity studies are mirrored in the results of the antibacterial experiments. (C) 2007 Elsevier Masson SAS. All rights reserved.