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