Ethyl 2-(chloromethyl)-3-methoxy-4-(trifluoromethoxy)pyridine-6-carboxylate
4-Bromo-3-chloro-5-(trifluoromethoxy)pyridine-2-sulfonyl chloride
5-(Chloromethyl)-3-(difluoromethyl)-4-(trifluoromethyl)pyridine-2-sulfonyl chloride
4-(Difluoromethyl)-5-nitropyridine-2-sulfonamide