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