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