5-Bromo-3-nitro-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2-Bromo-5-(difluoromethyl)-3-nitro-4-(trifluoromethoxy)pyridine
Methyl 3-(aminomethyl)-5-bromo-2-(trifluoromethoxy)pyridine-4-carboxylate
6-Bromo-4-(difluoromethyl)-3-nitro-2-(trifluoromethoxy)pyridine