Pharmacologically active 2,4,5-trisubstituted oxazoles of the general formula ##STR1## wherein A is cyclohexyl, thienyl or a group of the formula ##STR2## in which R represents one to three substituents each independently selected from the group consisting of hydrogen, lower alkyl, halo, halo-lower alkyl, lower alkoxy, nitro, cyano, amino, carbamoyl, acetamino or carboxy; one of the R.sub.1 and R.sub.2 groups is a lower alkyl group and the other is an amido group, ##STR3## wherein R.sub.3 is selected from the group consisting of hydrogen, lower alkyl, lower alkenyl, cycloalkyl, phenyl, substituted phenyl, phenyl-lower alkyl, hydroxy-lower alkyl, lower acyloxy-lower alkyl, hydroxy, amino, lower alkylideneamino, cycloalkylideneamino, benzylideneamino and R.sub.4 is selected from hydrogen, lower alkyl, lower alkenyl, cycloalkyl, phenyl, substituted phenyl, phenyl-lower alkyl, hydroxy-lower alkyl, lower acyloxy-lower alkyl, or R.sub.3 and R.sub.4 taken together with the nitrogen atom may also form a 5- to 7-membered hetero ring which may contain one other hetero atom selected from N, O and S. The compounds have antiinflammatory activity.
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