3-Amino-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-carboxaldehyde
Methyl 2-amino-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 2-amino-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 2-amino-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-6-carboxylate