5-(Chloromethyl)-2-(difluoromethyl)-4-methoxypyridine-3-acetic acid
5-(Chloromethyl)-2-(difluoromethyl)-3-methoxypyridine-4-acetic acid
4-(Chloromethyl)-3-(difluoromethyl)-6-methoxypyridine-2-acetic acid
2-(Difluoromethyl)-5-methoxy-6-(trifluoromethyl)pyridine-3-carboxylic acid