2-Bromo-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-methanol
5-Chloro-2-(difluoromethyl)-3-nitro-6-(trifluoromethoxy)pyridine
4-Chloro-3-(difluoromethyl)-6-nitro-2-(trifluoromethoxy)pyridine
4-Chloro-3-(difluoromethyl)-2-nitro-6-(trifluoromethoxy)pyridine