| abstract |
Compounds of the formula:n in which R' is an optionally substituted phenyl, phenyl-(1-4C)alkyl- naphtyl, monocyclic or bicyclic heteroaromatic or (monocyclic or bicyclic heteroaromatic)-(1-4C)alkyl radical, R 2 is a (3-8C) alkyl or a (1-4C)-alkyl bearing one or two (1-4C) alkoxy or a 1,3-dioxalanyl, tetrahydrofuryl or tetrahydropyranyl substituent or is a (3-8C)cyctoalkyl, [(3-8C)cycloalkyll - (1-4C)alkyl or 3-6C)alkenyl radical, or an optionally substituted phenyl or phenyl- (1-4C)-alkyl radical, and R 3 is a (1-4C)alkyl radical, preferably a methyl radical; together with pharmaceutically acceptable salts thereof. Also provided are processes for the manufacture of, and pharmaceutical compositions of the derivatives and salts thereof. Some of the derivatives possess anti-inflammatory properties and/or are inhibitors of the enzyme prostaglandin synthetase in addition to possessing analgesic properties. |