2-Bromo-4-(difluoromethyl)-3-(trifluoromethyl)pyridine-5-carboxylic acid
3-Bromo-6-(difluoromethyl)-4-methylpyridine-2-sulfonyl chloride
2-Bromo-3-(difluoromethyl)-6-(trifluoromethyl)pyridine-4-carboxylic acid
2-Bromo-3-(difluoromethyl)-5-(trifluoromethyl)pyridine-4-carboxylic acid