2-(Difluoromethyl)-4-fluoro-5-hydroxypyridine-3-sulfonamide
5-(Chloromethyl)-2-methoxy-4-(trifluoromethoxy)pyridine-3-carboxylic acid
Methyl 4-(bromomethyl)-2-chloro-6-(trifluoromethoxy)pyridine-3-carboxylate
2-(Difluoromethyl)-6-fluoro-3-(trifluoromethoxy)pyridine-5-acetonitrile