2-(Difluoromethyl)-5-methyl-3-nitro-4-(trifluoromethoxy)pyridine
6-(Difluoromethyl)-4-methyl-3-nitro-2-(trifluoromethoxy)pyridine
2-(Difluoromethyl)-6-methoxy-3-(trifluoromethoxy)pyridine-4-acetonitrile
2-(Difluoromethyl)-4-methyl-3-nitro-5-(trifluoromethoxy)pyridine