3-Amino-2-(bromomethyl)-4-(difluoromethyl)-5-methylpyridine
3-(Bromomethyl)-5-cyano-4-(difluoromethyl)-2-hydroxypyridine
5-Amino-3-(difluoromethyl)-4-iodopyridine-2-sulfonamide
5-(Difluoromethyl)-4-fluoro-2-hydroxypyridine-3-sulfonyl chloride
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