6-Bromo-3-fluoro-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride
5-Amino-2-methyl-3-(trifluoromethoxy)pyridine-4-sulfonamide
2-Bromo-5-fluoro-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
4-Amino-5-methyl-3-(trifluoromethoxy)pyridine-2-sulfonamide