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