6-(Difluoromethyl)-4-nitro-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
2-(Difluoromethyl)-3-nitro-4-(trifluoromethoxy)pyridine-5-methanol
5-(Difluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine-4-acetonitrile
4-(Difluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine-5-acetonitrile