HETEROARYL PHENYL PYRAZOLE COMPOUNDS AS ANTI-INFLAMMATORY/ANALGESIC AGENTS

摘要

This invention relates to a compound of the formula: or a pharmaceutically acceptable salt thereof, wherein A and R1 are each an optionally substituted 5 to 6-membered heteroaryl, wherein the heteroaryl is optionally fused to a carbocyclic ring or 5 to 6-heteroaryl; R2 is (C1-C4)alkyl optionally substituted with halo, amino or an alkyl amino; R3 and R4 are each hydrogen, halo, (C1-C4)alkyl optionall y substituted with halo and the like; and X1 to X4 are each hydrogen, halo, hydroxy, (C1-C4)alk yl optionally substituted with halo and the like. These compounds have COX-2 inhibiting activity and thus useful for treating or preventing inflammation or other COX-2 related diseases.