2-(Chloromethyl)-6-(difluoromethyl)-4-hydroxypyridine-3-acetic acid
Methyl 2-(aminomethyl)-3-(difluoromethyl)-5-hydroxypyridine-6-acetate
5-(Aminomethyl)-3-(difluoromethyl)-4-hydroxypyridine-2-acetic acid
Methyl 3-(chloromethyl)-6-(difluoromethyl)-2-hydroxypyridine-5-acetate