Methyl 3-(bromomethyl)-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-4-acetate
 
4-(Difluoromethyl)-2-iodo-3-methylpyridine
 
3-(Bromomethyl)-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-4-acetic acid
 
5-(Bromomethyl)-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-acetic acid