3-Amino-4-(difluoromethyl)-5-(trifluoromethyl)pyridine-2-acetic acid
2-Bromo-6-chloro-5-(difluoromethyl)-3-(trifluoromethyl)pyridine
3-Bromo-2-(bromomethyl)-6-chloro-5-(difluoromethyl)pyridine
3-Bromo-2-(bromomethyl)-5-chloro-4-(difluoromethyl)pyridine