6-Amino-4-fluoro-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
2-Fluoro-3-nitro-4-(trifluoromethoxy)pyridine-5-sulfonamide
4-Amino-2-(difluoromethyl)-3-nitropyridine-5-acetonitrile
Ethyl 3-(difluoromethyl)-5-hydroxy-4-methoxypyridine-2-carboxylate