2-Amino-3-(difluoromethyl)-6-iodopyridine-4-sulfonamide
3-Chloro-2-(difluoromethyl)-4-hydroxypyridine-6-sulfonyl chloride
2-Fluoro-4-iodopyridine-6-carbonyl chloride
3-Hydroxymethyl-5-methyl-2-(trifluoromethyl)pyridine
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