2-(Difluoromethyl)-3-methoxy-5-nitropyridine-6-sulfonyl chloride
3-Amino-5-(difluoromethyl)-6-iodopyridine-2-sulfonamide
3-(Chloromethyl)-6-(difluoromethyl)-4-(trifluoromethyl)pyridine-2-sulfonyl chloride
Ethyl 5-(difluoromethyl)-4-methyl-3-(trifluoromethoxy)pyridine-2-carboxylate