4-(Difluoromethyl)-2-(trifluoromethyl)pyridine-6-sulfonyl chloride
3-(Bromomethyl)-2-(difluoromethyl)-4-methoxypyridine
2-(Bromomethyl)-3-(difluoromethyl)pyridine-5-sulfonyl chloride
5-(Difluoromethyl)-4-(trifluoromethyl)pyridine-2-sulfonyl chloride
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