3-Bromo-4-nitro-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride
3-Bromo-2-nitro-5-(trifluoromethoxy)pyridine-6-sulfonyl chloride
Methyl 4-chloro-5-cyano-2-(trifluoromethoxy)pyridine-3-carboxylate
2-Chloro-4-fluoro-3-methoxy-5-(trifluoromethoxy)pyridine