3-Amino-4-(difluoromethyl)-6-(trifluoromethyl)pyridine-2-carboxylic acid
2-Amino-3-(difluoromethyl)-4-(trifluoromethyl)pyridine-5-acetic acid
Ethyl 2-amino-4-(difluoromethyl)-3-(trifluoromethyl)pyridine-5-acetate
Ethyl 2-amino-3-(difluoromethyl)-5-(trifluoromethyl)pyridine-6-acetate