| abstract |
Novel compound of the formula:[wherein R<sup>1</sup> stands for an optionally substituted alkyl group, alkenyl group, aryl group, aralkyl group, cycloalkyl group, heterocyclic group having carbon as the bonding hand or amino group, R<sup>2</sup> stands for a pyridyl group which may be substituted with alkyl group, and R<sup>3</sup> stands for an optionally substituted aryl group] or salts thereof, has analgesic, anti-piretic, anti-inflammatory and anti-ulcer actions, and can be administered to mammals for the therapy of pain, inflammatory diseases, rheumatic chroric diseases. |