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