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