4-Bromo-3-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-carboxylic acid
6-Chloro-3-(fluoromethyl)-4-iodo-2-(trifluoromethoxy)pyridine
2-Bromo-5-methyl-3-(trifluoromethoxy)pyridine-6-sulfonyl chloride
2-Chloro-5-(fluoromethyl)-3-iodo-4-(trifluoromethoxy)pyridine