4-(Chloromethyl)-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-5-sulfonyl chloride
Methyl 2-(difluoromethyl)pyridine-4-carboxylate
3-(Chloromethyl)-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-5-sulfonyl chloride
4-(Difluoromethyl)pyridine-3-carboxylic acid