Ethyl 4-amino-2-(aminomethyl)-3-(difluoromethyl)pyridine-6-carboxylate
Ethyl 3-amino-5-(aminomethyl)-2-(difluoromethyl)pyridine-6-carboxylate
2-Amino-4-(difluoromethyl)-5-methyl-3-(trifluoromethyl)pyridine
2-Amino-3-(difluoromethyl)-6-methylpyridine-4-methanol