Methyl 5-methoxy-2-nitro-3-(trifluoromethoxy)pyridine-4-acetate
Methyl 6-methoxy-2-nitro-4-(trifluoromethoxy)pyridine-3-acetate
Methyl 6-methoxy-4-nitro-3-(trifluoromethoxy)pyridine-2-acetate
2-Methoxy-3-methyl-4-(trifluoromethoxy)pyridine-5-sulfonamide