Ethyl 3-(difluoromethyl)-6-hydroxy-2-nitropyridine-4-carboxylate
2-(Bromomethyl)-5-(difluoromethyl)-6-hydroxy-3-(trifluoromethyl)pyridine
Ethyl 6-(bromomethyl)-4-(difluoromethyl)-2-hydroxypyridine-3-acetate
5-(Bromomethyl)-3-(difluoromethyl)-2-hydroxy-4-nitropyridine