5-Methyl-4-carboxy-3-p-tolyl-isoxazol

5-Methyl-3-p-tolyl-isoxazole-4-carboxylic acid

5-methyl-3-(4-methylphenyl)isoxazole-4-carboxylic acid

3-(4-tolyl)-5-methylisoxazole-4-carboxylic acid

5-methyl-3-(4-methylphenyl)-1,2-oxazole-4-carboxylic acid