3-(Difluoromethyl)-2-hydroxy-5-methoxypyridine-6-carbonyl chloride
6-(Bromomethyl)-2-(difluoromethyl)-4-hydroxy-3-methoxypyridine
2-(Difluoromethyl)-3-hydroxy-4-methoxypyridine-5-carbonyl chloride
2-(Difluoromethyl)-5-hydroxy-3-methyl-6-(trifluoromethyl)pyridine