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