Synthesis, spasmolytic activity and structure–activity relationship study of a series of polypharmacological thiobenzanilides
摘要:
Recently we presented a series of benzanilide derivatives with a selective spasmolytic effect on terminal ileum preparations of the guinea pig. In this report we demonstrate a further development of these compounds. The exchange of the amide oxygen against a sulfur atom resulted in an up to 325 fold increase of the antispasmodic activity of the thiobenzanilide (IC50 of 0.1 mu M) compared to its benzanilide derivative. Considering their mode of action the compounds interacted with several molecular targets, suggesting that we identified a chemical identity able to modulate multiple targets simultaneously. Furthermore, based on this data set, we present a structure-activity relationship study supporting the important role of the sulfur atom. (C) 2010 Elsevier B.V. All rights reserved.
Novel 5-substituted 1H-tetrazoles as cyclooxygenase-2 (COX-2) inhibitors
摘要:
A series of novel 5-substituted 1H-tetrazoles as cyclooxygenase-2 (COX-2) inhibitors was prepared via treatment of various diaryl amides with tetrachlorosilane/sodium azide. All compounds were tested in cyclooxygenase (COX) assays in vitro to determine COX-1 and COX-2 inhibitory potency and selectivity. Tetrazoles contained a methylsulfonyl or sulfonamide group as COX-2 pharmacophore displayed only low inhibitory potency towards COX-2. Most potent compounds showed IC50 values of 6 and 7 mu M for COX-2. All compounds showed IC50 values greater 100 mu M for COX-1 inhibition. (C) 2012 Elsevier Ltd. All rights reserved.
A series of novel 5-substituted 1H-tetrazoles as cyclooxygenase-2 (COX-2) inhibitors was prepared via treatment of various diaryl amides with tetrachlorosilane/sodium azide. All compounds were tested in cyclooxygenase (COX) assays in vitro to determine COX-1 and COX-2 inhibitory potency and selectivity. Tetrazoles contained a methylsulfonyl or sulfonamide group as COX-2 pharmacophore displayed only low inhibitory potency towards COX-2. Most potent compounds showed IC50 values of 6 and 7 mu M for COX-2. All compounds showed IC50 values greater 100 mu M for COX-1 inhibition. (C) 2012 Elsevier Ltd. All rights reserved.
Synthesis, spasmolytic activity and structure–activity relationship study of a series of polypharmacological thiobenzanilides
作者:Gerda Brunhofer、Christian Studenik、Gerhard F. Ecker、Thomas Erker
DOI:10.1016/j.ejps.2010.10.005
日期:2011.1
Recently we presented a series of benzanilide derivatives with a selective spasmolytic effect on terminal ileum preparations of the guinea pig. In this report we demonstrate a further development of these compounds. The exchange of the amide oxygen against a sulfur atom resulted in an up to 325 fold increase of the antispasmodic activity of the thiobenzanilide (IC50 of 0.1 mu M) compared to its benzanilide derivative. Considering their mode of action the compounds interacted with several molecular targets, suggesting that we identified a chemical identity able to modulate multiple targets simultaneously. Furthermore, based on this data set, we present a structure-activity relationship study supporting the important role of the sulfur atom. (C) 2010 Elsevier B.V. All rights reserved.