Methyl 5-(aminomethyl)-3-(difluoromethyl)-4-hydroxypyridine-2-carboxylate
3-(Bromomethyl)-6-(difluoromethyl)-4-hydroxy-2-(trifluoromethyl)pyridine
Methyl 6-(aminomethyl)-4-(difluoromethyl)-3-hydroxypyridine-2-carboxylate
3-(Bromomethyl)-4-(difluoromethyl)-2-hydroxy-5-nitropyridine