3-(Difluoromethyl)-2-nitro-5-(trifluoromethyl)pyridine-6-carboxamide
3-(Difluoromethyl)-2-nitro-5-(trifluoromethyl)pyridine-4-carboxamide
3-(Difluoromethyl)-2-nitro-4-(trifluoromethyl)pyridine-6-carboxamide
3-(Difluoromethyl)-2-nitro-4-(trifluoromethyl)pyridine-5-carboxamide