3-Amino-2-hydroxy-5-(trifluoromethoxy)pyridine-6-acetonitrile
6-(Bromomethyl)-4-methoxy-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
3-Chloro-6-fluoro-2-(trifluoromethoxy)pyridine-4-acetonitrile
4-Amino-3-bromo-2-(difluoromethyl)pyridine-5-carboxylic acid