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