5-(Difluoromethyl)-4-hydroxy-3-nitro-2-(trifluoromethyl)pyridine
6-(Difluoromethyl)-4-hydroxy-3-nitro-2-(trifluoromethyl)pyridine
4-(Bromomethyl)-2-(difluoromethyl)-5-hydroxypyridine-3-carboxaldehyde
2-(Difluoromethyl)-6-hydroxy-4-nitropyridine-3-methanol