5-Bromo-2-chloro-3-(difluoromethyl)pyridine-4-acetonitrile
4-Amino-2-(difluoromethyl)-3-(trifluoromethyl)pyridine-6-carboxylic acid
4-Bromo-5-chloro-3-(difluoromethyl)pyridine-2-acetonitrile
3-Amino-5-(difluoromethyl)-2-(trifluoromethyl)pyridine-6-carboxylic acid