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
2-Bromo-3-chloro-4-(difluoromethyl)pyridine-5-carboxylic acid