2-Amino-3-(difluoromethyl)-5-methoxypyridine-6-carboxaldehyde
4-Amino-2-(difluoromethyl)-3-methyl-6-nitropyridine
Methyl 2-amino-5-(aminomethyl)-6-(difluoromethyl)pyridine-3-carboxylate
5-Amino-2-(aminomethyl)-3-(difluoromethyl)pyridine-4-carboxylic acid