3-(Difluoromethyl)-2-methyl-4-(trifluoromethoxy)pyridine-5-acetic acid
5-(Chloromethyl)-2-iodo-4-(trifluoromethoxy)pyridine
3,6-Difluoro-4-(trifluoromethoxy)pyridine-2-acetic acid
6-(Difluoromethyl)-2-methyl-4-(trifluoromethoxy)pyridine-3-acetic acid