2-Chloro-5-cyano-4-(difluoromethyl)pyridine-3-carbonyl chloride
2-Chloro-5-cyano-3-(difluoromethyl)pyridine-4-carbonyl chloride
2-Chloro-4-cyano-5-(difluoromethyl)pyridine-3-carbonyl chloride
5-(Aminomethyl)-4-bromo-2-(difluoromethyl)-3-(trifluoromethyl)pyridine