Methyl 2-bromo-6-nitro-3-(trifluoromethoxy)pyridine-5-carboxylate
Methyl 6-bromo-3-nitro-2-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 2-chloro-6-methoxy-3-(trifluoromethoxy)pyridine-5-carboxylate
2-Bromo-3-(chloromethyl)-4-nitro-6-(trifluoromethoxy)pyridine