Ethyl 3-methoxy-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-5-acetate
5-(Difluoromethyl)-2-methoxy-3-(trifluoromethoxy)pyridine-4-methanol
4-(Difluoromethyl)-2-methoxy-3-(trifluoromethoxy)pyridine-5-methanol
5-(Difluoromethyl)-3-methoxy-4-(trifluoromethoxy)pyridine-2-methanol