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