4-(Fluoromethyl)-5-methyl-2-nitro-3-(trifluoromethoxy)pyridine
3-(Difluoromethyl)-2-nitro-5-(trifluoromethoxy)pyridine-4-sulfonamide
4-(Fluoromethyl)-3-methyl-5-nitro-2-(trifluoromethoxy)pyridine
2-(Difluoromethyl)-6-nitro-4-(trifluoromethoxy)pyridine-3-sulfonamide