P38 kinase has been known to be one of the important and validated targets
for inflammatory diseases including rheumatoid arthritis for its vital role in production
and release of proinflammatory cytokines including tumor necrosis factor alpha (TNF-α) and interleukin-beta (IL-1β).
Pyridinyl group of our reported compounds was replaced by simple phenyl groups and compounds were synthesized and
characterized. A dose of 50 mg/Kg has been administered and observed antiinflammatory activity in rats. Compounds 6h,
6i, 6j and 6o exhibited significant antiinflammatory activity at 3rd hour of carrageenan administration. Compounds 6c, 6j,
6k and others demonstrated greater than 50% p38 kinase inhibitory activity at 10 μM.
Keywords: Anti-inflammatory, diphenyl urea, p38 kinase, synthesis/in vitro/in vivo.
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