4-(Aminomethyl)-3-(difluoromethyl)-2-hydroxy-5-nitropyridine
5-Methoxy-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-acetic acid
6-Cyano-3-(difluoromethyl)-4-(trifluoromethyl)pyridine-2-carboxylic acid
4-Cyano-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride