3-(Difluoromethyl)-2-hydroxy-5-methoxy-6-(trifluoromethoxy)pyridine
3-(Difluoromethyl)-2-hydroxy-4-methoxy-5-(trifluoromethoxy)pyridine
6-Iodo-3-methoxy-4-methyl-2-(trifluoromethoxy)pyridine
2-(Difluoromethyl)-6-hydroxy-3-methoxy-4-(trifluoromethoxy)pyridine