3-Bromo-5-(difluoromethyl)-4-nitro-2-(trifluoromethoxy)pyridine
2-Chloro-3-cyano-6-(trifluoromethoxy)pyridine-5-acetonitrile
6-Bromo-4-methyl-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
3-Bromo-4-(difluoromethyl)-5-nitro-2-(trifluoromethoxy)pyridine