3-Bromo-2-(bromomethyl)-4-(difluoromethyl)pyridine-6-acetic acid
6-Bromo-3-(bromomethyl)-2-(difluoromethyl)pyridine-4-acetic acid
4-(Bromomethyl)-5-chloro-2-(difluoromethyl)-3-hydroxypyridine
4-(Bromomethyl)-3-chloro-5-(difluoromethyl)-2-hydroxypyridine