Methyl 3-amino-4-bromo-2-(difluoromethyl)pyridine-6-carboxylate
3-Amino-2-(difluoromethyl)-6-fluoro-5-(trifluoromethyl)pyridine
Methyl 3-amino-2-bromo-6-(difluoromethyl)pyridine-4-carboxylate
Methyl 3-amino-2-bromo-4-(difluoromethyl)pyridine-6-carboxylate