Methyl 3-hydroxy-2-methoxy-4-(trifluoromethoxy)pyridine-5-carboxylate
Methyl 6-hydroxy-2-methoxy-4-(trifluoromethoxy)pyridine-3-carboxylate
3-Fluoro-2-nitro-5-(trifluoromethoxy)pyridine-4-acetonitrile
6-Fluoro-2-nitro-3-(trifluoromethoxy)pyridine-4-acetonitrile