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