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