Ethyl 5-(difluoromethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine-2-acetate
Ethyl 3-(difluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-5-acetate
2-Iodo-6-methoxy-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
6-Iodo-3-methoxy-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine