5-(Aminomethyl)-3-(difluoromethyl)-4-hydroxypyridine-2-acetic acid
Methyl 3-(chloromethyl)-6-(difluoromethyl)-2-hydroxypyridine-5-acetate
Methyl 4-(chloromethyl)-2-(difluoromethyl)-3-hydroxypyridine-6-acetate
4-(Difluoromethyl)-3-hydroxy-2-(trifluoromethyl)pyridine-6-acetonitrile