Methyl 3-(aminomethyl)-5-(difluoromethyl)-6-hydroxypyridine-2-carboxylate
Methyl 3-(aminomethyl)-2-(difluoromethyl)-6-hydroxypyridine-4-carboxylate
2-(Aminomethyl)-6-(difluoromethyl)-3-hydroxy-4-(trifluoromethyl)pyridine
Ethyl 6-(difluoromethyl)-4-hydroxy-3-methylpyridine-2-acetate