Ethyl 2,6-diamino-3-(difluoromethyl)pyridine-4-carboxylate
4-(Difluoromethyl)-2-methylpyridine-3-sulfonyl chloride
3-(Difluoromethyl)-5-methylpyridine-2-sulfonyl chloride
Ethyl 3,6-diamino-4-(difluoromethyl)pyridine-2-carboxylate
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