6-Hydroxy-3-nitro-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride
3-(Difluoromethyl)-6-fluoro-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
2-(Chloromethyl)-6-hydroxy-4-(trifluoromethoxy)pyridine-3-acetic acid
5-(Difluoromethyl)-2-fluoro-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine