Methyl 3-(difluoromethyl)-2,6-dimethoxypyridine-4-carboxylate
Methyl 3-(difluoromethyl)-2,5-dimethoxypyridine-4-carboxylate
2,4-Difluoro-3-(difluoromethyl)pyridine-6-sulfonyl chloride
2,3-Difluoro-4-(difluoromethyl)pyridine-6-sulfonyl chloride
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