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