5-(Difluoromethyl)-2-hydroxy-3-(trifluoromethyl)pyridine-4-carboxaldehyde
2-(Chloromethyl)-4-(difluoromethyl)-3-hydroxypyridine-6-carboxaldehyde
5-(Chloromethyl)-2-(difluoromethyl)-3-hydroxypyridine-6-methanol
2-(Difluoromethyl)-5-iodo-6-methylpyridine-3-sulfonamide