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