6-(Chloromethyl)-4-(difluoromethyl)-2-methoxypyridine-3-carboxylic acid
2-(Chloromethyl)-4-(difluoromethyl)-5-methoxypyridine-3-carboxylic acid
3,6-Dichloro-2-(fluoromethyl)-4-(trifluoromethoxy)pyridine
6-Iodo-2-(trifluoromethoxy)pyridine-3-carboxylic acid