4-(Difluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine-5-methanol
5-(Difluoromethyl)-3-nitro-4-(trifluoromethoxy)pyridine-2-methanol
Methyl 6-methyl-3-nitro-4-(trifluoromethoxy)pyridine-2-acetate
3-(Difluoromethyl)-5-nitro-2-(trifluoromethoxy)pyridine-4-methanol