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