Methyl 2-chloro-3-nitro-4-(trifluoromethoxy)pyridine-5-carboxylate
5-Bromo-2-(chloromethyl)-3-(difluoromethyl)-6-(trifluoromethoxy)pyridine
3-Chloro-6-nitro-4-(trifluoromethoxy)pyridine-2-carboxylic acid
4-Bromo-3-(chloromethyl)-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine