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