Methyl 2-(difluoromethyl)-6-methoxy-4-methylpyridine-3-acetate
Methyl 6-(chloromethyl)-4-(difluoromethyl)-2-iodopyridine-3-acetate
3-(Chloromethyl)-4-(difluoromethyl)-6-methoxypyridine-2-acetic acid
3-(Difluoromethyl)-4-iodo-6-(trifluoromethyl)pyridine-2-acetic acid