4-(Chloromethyl)-2-(difluoromethyl)-3-methoxypyridine-5-acetic acid
3-(Chloromethyl)-5-(difluoromethyl)-6-methoxypyridine-2-acetic acid
3-(Difluoromethyl)-6-methoxy-4-(trifluoromethyl)pyridine-2-carboxaldehyde
3-(Chloromethyl)-5-(difluoromethyl)-4-methoxypyridine-2-acetic acid