3-(Chloromethyl)-2-fluoro-5-methoxy-4-(trifluoromethoxy)pyridine
2-(Chloromethyl)-6-fluoro-4-methoxy-3-(trifluoromethoxy)pyridine
5-(Difluoromethyl)-3-fluoro-2-methoxy-4-(trifluoromethoxy)pyridine
3-(Difluoromethyl)-2-fluoro-5-methoxy-4-(trifluoromethoxy)pyridine