Methyl 2-bromo-3-chloro-4-(difluoromethyl)pyridine-5-carboxylate
3-(Aminomethyl)-2-bromo-4-cyano-5-(difluoromethyl)pyridine
3-Bromo-6-chloro-4-(difluoromethyl)pyridine-2-carboxylic acid
2-Amino-3-(difluoromethyl)-5-(trifluoromethyl)pyridine-6-acetic acid