2-Amino-3-(fluoromethyl)-6-(trifluoromethoxy)pyridine-5-acetonitrile
2-Bromo-6-chloro-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine
2-Amino-3-(fluoromethyl)-5-(trifluoromethoxy)pyridine-4-acetonitrile
6-Bromo-4-chloro-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine