n-Butyl 2-chloroisonicotinate

2-Chloro-4-pyridyl (4-cyclohexyl)butyl ketone

2-Chloro-4-pyridyl 2,2-dimethylpropyl ketone

2-Methoxy-5-(2-cyanophenylacetyl)pyridine

2-Methoxy-5-picolinoylpyridine

2-Methoxy-3-thenoylpyridine

3-(4-Acetoxybenzoyl)-2-chloropyridine

5-(4-Acetoxybenzoyl)-2-chloropyridine

3-(3-Acetoxybenzoyl)-5-bromopyridine

2-(4-Fluorobenzoyl)-6-methylpyridine

2-(3-Chlorobenzoyl)-6-methylpyridine