3-Chloro-4-(difluoromethyl)-6-nitro-2-(trifluoromethoxy)pyridine
2-Chloro-3-hydroxy-5-(trifluoromethoxy)pyridine-6-sulfonyl chloride
3-Chloro-4-(difluoromethyl)-2-nitro-6-(trifluoromethoxy)pyridine
3-Chloro-2-(difluoromethyl)-6-nitro-4-(trifluoromethoxy)pyridine