3-Chloro-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine-4-carboxaldehyde
4-(Difluoromethyl)-2-fluoro-5-methoxy-3-(trifluoromethoxy)pyridine
3-(Difluoromethyl)-5-fluoro-4-methoxy-2-(trifluoromethoxy)pyridine
5-(Difluoromethyl)-4-fluoro-2-methoxy-3-(trifluoromethoxy)pyridine