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