Methyl 2-(difluoromethyl)-6-fluoro-3-hydroxypyridine-4-carboxylate
4-(Aminomethyl)-3-(difluoromethyl)-6-fluoro-2-iodopyridine
Methyl 2-cyano-6-(difluoromethyl)-3-(trifluoromethyl)pyridine-5-acetate
4-(Difluoromethyl)-5-fluoro-3-iodopyridine-2-carbonyl chloride