5-(Difluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-3-acetic acid
3-Iodo-2-methoxy-4-nitro-5-(trifluoromethoxy)pyridine
6-Iodo-2-methoxy-4-nitro-3-(trifluoromethoxy)pyridine
3-(Difluoromethyl)-4-hydroxy-5-(trifluoromethoxy)pyridine-2-acetic acid