Methyl 4-(difluoromethyl)-3-fluoro-2-hydroxypyridine-6-carboxylate
6-(Bromomethyl)-3-cyano-4-(difluoromethyl)pyridine-2-acetic acid
Methyl 3-(difluoromethyl)-2-fluoro-6-hydroxypyridine-4-carboxylate
Ethyl 2-cyano-3-(difluoromethyl)-5-(trifluoromethyl)pyridine-4-acetate