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