4-Chloro-6-cyano-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine
4-(Bromomethyl)-3,6-diamino-2-(difluoromethyl)pyridine
6-(Aminomethyl)-3-(difluoromethyl)-2-fluoropyridine-4-carboxylic acid
4-(Chloromethyl)-3-(difluoromethyl)-2-(trifluoromethyl)pyridine-5-sulfonyl chloride