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
2-(Difluoromethyl)-5-methoxy-3-methylpyridine-4-carbonyl chloride