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