Methyl 3-(difluoromethyl)-2-nitro-6-(trifluoromethoxy)pyridine-5-carboxylate
3-(Difluoromethyl)-5-methoxy-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
2-Methyl-4-nitro-3-(trifluoromethoxy)pyridine-5-sulfonamide
4-(Fluoromethyl)-5-methoxy-3-(trifluoromethoxy)pyridine-2-acetic acid