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