E. R. Ottosen, M. D. Sørensen, F. Björkling
Nov 11, 2003
Citations
1
Influential Citations
70
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Quality indicators
Journal
Journal of Medicinal Chemistry
Abstract
We wish to report the synthesis and structure−activity relationship (SAR) of a series of 4-aminobenzophenones, as a novel compound class with high antiinflammatory activity. Our initial lead, {4-[(2-aminophenyl)amino]phenyl}(phenyl)methanone (3), was systematically optimized and resulted in compounds that potently inhibited the release of the proinflammatory cytokines IL-1β and TNF-α in human peripheral blood mononuclear cells stimulated by LPS. One of the most potent compounds, among others, was {4-[(2-aminophenyl)amino]-2-chlorophenyl}(2-methylphenyl)methanone (45) with IC50 values of 14 and 6 nM for the inhibition of IL-1β and TNF-α, respectively. Furthermore, we found these types of compounds to be potent and selective p38 MAP kinase inhibitors, e.g. 45 had an IC50 value of 10 nM. Molecular modeling was used to rationalize our SAR data and to propose a model for the interaction of compound 45 with the p38 MAP kinase. The model involved a favorable hydrogen bond between the carbonyl group of the benzop...