3-(Difluoromethyl)-4-nitro-2-(trifluoromethoxy)pyridine-6-methanol
5-(Difluoromethyl)-2-methoxy-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
3-(Difluoromethyl)-2-nitro-6-(trifluoromethoxy)pyridine-4-methanol
4-(Difluoromethyl)-3-methoxy-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine