3-(Fluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-6-carboxaldehyde
Methyl 2-bromo-6-(fluoromethyl)-3-(trifluoromethoxy)pyridine-4-carboxylate
3-Chloro-4-(difluoromethyl)-6-methoxy-2-methylpyridine
3-(Difluoromethyl)-5-iodo-6-methylpyridine-2-carboxylic acid