Ethyl 2-(difluoromethyl)-6-fluoro-3-hydroxypyridine-4-carboxylate
4-Cyano-2-(difluoromethyl)-5-(trifluoromethyl)pyridine-3-acetonitrile
Ethyl 4-(difluoromethyl)-5-fluoro-2-hydroxypyridine-3-acetate
2-(Difluoromethyl)-3-fluoro-4-hydroxypyridine-5-acetonitrile