3-Amino-6-(difluoromethyl)-4-(trifluoromethoxy)pyridine-2-acetic acid
4-Amino-2-(difluoromethyl)-5-methoxy-3-(trifluoromethoxy)pyridine
5-Amino-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetic acid
4-Amino-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine-6-methanol