Methyl 2-fluoro-5-nitro-4-(trifluoromethoxy)pyridine-3-carboxylate
4-Fluoro-3-nitro-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride
Methyl 2-fluoro-4-nitro-5-(trifluoromethoxy)pyridine-3-carboxylate
4-Fluoro-6-nitro-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride