2-(Difluoromethyl)-3,4-dimethoxypyridine-5-sulfonamide
5-(Difluoromethyl)-2,3-dimethoxypyridine-6-carbonyl chloride
3-(Difluoromethyl)-2,6-dimethoxypyridine-4-sulfonamide
3-Amino-5-chloro-2-cyano-6-(difluoromethyl)pyridine
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