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