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