3-(Bromomethyl)-4-(difluoromethyl)-2-hydroxy-6-nitropyridine
6-(Bromomethyl)-4-(difluoromethyl)-3-hydroxypyridine-2-methanol
2-(Bromomethyl)-4-(difluoromethyl)-3-hydroxypyridine-5-methanol
2-(Bromomethyl)-3-(difluoromethyl)-4-hydroxypyridine-5-methanol