3-Amino-2-chloro-6-(difluoromethyl)pyridine-5-carboxylic acid
4-Amino-2-chloro-3-(difluoromethyl)-5-(trifluoromethyl)pyridine
Methyl 4-amino-5-chloro-3-(difluoromethyl)pyridine-2-carboxylate
3-Amino-2-chloro-5-(difluoromethyl)pyridine-4-carboxylic acid