4-Chloro-2-methyl-5-(trifluoromethoxy)pyridine-3-sulfonyl chloride
2-Chloro-4-(difluoromethyl)-5-nitro-3-(trifluoromethoxy)pyridine
5-Chloro-3-methyl-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2-Chloro-3-(difluoromethyl)-5-nitro-4-(trifluoromethoxy)pyridine