1-(2-Chloro-4-pyridyl)-1,5-hexanedione

2-(3-Cyanobenzoyl)-6-methylpyridine

2-(4-Butylbenzoyl)-6-methylpyridine

2-(4-Heptyloxybenzoyl)-6-methylpyridine

6-Methyl-2-(4-propoxybenzoyl)pyridine

2-(3,4-Difluorobenzoyl)-6-methylpyridine

2-(2,3-Dimethylbenzoyl)-6-methylpyridine

2-(3,5-Dimethylbenzoyl)-6-methylpyridine

2-(4-Methylbenzoyl)-5-methylpyridine

2-(4-Fluorobenzoyl)-5-methylpyridine

2-(2-Fluorobenzoyl)-5-methylpyridine