2-(Bromomethyl)-6-(difluoromethyl)-4-hydroxypyridine-3-acetic acid
3-(Chloromethyl)-4-cyano-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
4-Amino-3-(difluoromethyl)-5-nitropyridine-2-acetic acid
3-Cyano-2-(difluoromethyl)-6-(trifluoromethyl)pyridine-5-carboxylic acid