Ethyl 3-(difluoromethyl)-6-methoxy-4-methylpyridine-2-carboxylate
3-(Difluoromethyl)-6-iodo-2-(trifluoromethyl)pyridine-5-acetic acid
3-(Chloromethyl)-5-(difluoromethyl)-2-methoxypyridine-6-acetic acid
3-(Difluoromethyl)-5-iodo-6-(trifluoromethyl)pyridine-2-acetic acid