4-(Difluoromethyl)-2-methoxypyridine-6-carbonyl chloride
2-(Difluoromethyl)-5-methylpyridine-4-sulfonyl chloride
5-(Difluoromethyl)-3-nitro-2-(trifluoromethyl)pyridine
2-(Difluoromethyl)-3-methylpyridine-5-sulfonyl chloride
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