Ethyl 2-(bromomethyl)-6-(difluoromethyl)-3-hydroxypyridine-5-acetate
3-Amino-2-(difluoromethyl)-5-methoxypyridine-6-sulfonamide
4-Fluoro-6-(fluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
5-Amino-4-(difluoromethyl)-2-fluoropyridine-3-sulfonamide