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