5-(Chloromethyl)-2-(difluoromethyl)-3-methoxypyridine-4-carboxylic acid
4-(Difluoromethyl)-2-methyl-5-(trifluoromethoxy)pyridine-3-acetic acid
2-Chloro-3,5-dibromo-4-(trifluoromethoxy)pyridine
4-(Chloromethyl)-5-(difluoromethyl)-3-methoxypyridine-2-carboxylic acid