Abstract: Compounds of the formula (II): ##SPC1##wherein R.sub.1 is an aliphatic moiety of 1-12 carbon atoms, a cycloaliphatic moiety of 3-7 carbon atoms or said aliphatic moiety or said cycloaliphatic moiety substituted by halogen, carboxylic acid, esterified carboxylic acid, carboxamide, nitro, hydroxyl, etherified hydroxyl, acylated hydroxyl, amino, alkylamino, dialkylamino or acylated amino: R.sub.2 is a hydrocarbon of 1-7 carbon atoms: R.sub.3 is amino, lower alkylamino, di-lower alkylamino, anilino or lower alkoxyl; R.sub.4 is hydrogen, R.sub.5 or CO.R.sub.5 wherein R.sub.5 is a hydrocarbon of 1-7 carbon atoms, are useful for their anti-inflammatory activity.