Methyl 3-(difluoromethyl)-5-methoxypyridine-4-carboxylate
Methyl 3-(difluoromethyl)-4-methoxypyridine-5-carboxylate
Methyl 3-(chloromethyl)-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-4-acetate
4-(Chloromethyl)-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-carboxylic acid