3-Bromo-6-(difluoromethyl)-2-methoxypyridine-4-carboxylic acid
2-Bromo-3-(chloromethyl)-4-(difluoromethyl)-5-(trifluoromethyl)pyridine
5-Bromo-2-(difluoromethyl)-3-methoxypyridine-6-carboxylic acid
4-Bromo-5-(difluoromethyl)-2-methoxypyridine-3-carboxylic acid