Abstract
Ten pyridine and pyrimidine and thiazolopyrimidine derivatives (1-10) were synthesized and screened as analgesic, anticonvulsant and antiparkinsonian agent before. Herein, all the target compounds showed anti-inflammatory activity. The active compounds showed selective inhibitory activity towards COX-2 enzyme as revealed by the in vitro enzymatic assay. All the tested compounds proved to have superior gastrointestinal (GI) safety profiles as compared to indomethacin, when tested for their ulcerogenic effects.