Ethyl 3-(bromomethyl)-4-(difluoromethyl)-2-hydroxypyridine-5-carboxylate
Ethyl 4-(bromomethyl)-5-(difluoromethyl)-2-iodopyridine-3-acetate
2-Fluoro-3-hydroxy-4-(trifluoromethoxy)pyridine-6-sulfonamide
Ethyl 2,3-diamino-6-(difluoromethyl)pyridine-5-carboxylate