1-(2-Chloro-4-pyridyl)-1,6-heptanedione

2-(2-Bromobenzoyl)-6-methylpyridine

2-(4-Chlorobenzoyl)-6-methylpyridine

6-Methyl-2-(3-phenoxybenzoyl)pyridine

2-(4-Hexylbenzoyl)-6-methylpyridine

2-(4-Hexyloxybenzoyl)-6-methylpyridine

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

2-(2,5-Dichlorobenzoyl)-6-methylpyridine

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

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

2-Benzoyl-5-methylpyridine