4-Cyano-3-(difluoromethyl)-6-methoxy-2-(trifluoromethoxy)pyridine
4-Chloro-2-methyl-6-(trifluoromethoxy)pyridine-3-sulfonyl chloride
5-Chloro-4-methyl-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride
3-Chloro-4-methyl-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride