Methyl 3-methyl-2-nitro-6-(trifluoromethoxy)pyridine-5-acetate
Methyl 3-methyl-2-nitro-5-(trifluoromethoxy)pyridine-4-acetate
2-(Fluoromethyl)-3-methoxy-4-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
3-(Fluoromethyl)-5-methoxy-2-(trifluoromethoxy)pyridine-6-carboxylic acid