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