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