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