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