2,5-dimethyl-4-(4-methylbenzoyl)-1H-pyrazol-3-one

4-(2-methoxybenzoyl)-2,5-dimethyl-1H-pyrazol-3-one

4-(2-fluorobenzoyl)-2,5-dimethyl-1H-pyrazol-3-one

(5-chloro-1,3-dimethylpyrazol-4-yl)-(2,4-dichlorophenyl)methanone

(2,5-dimethylpyrazol-3-yl) 2,4-dichlorobenzoate