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