2-(Bromomethyl)-5-methyl-6-(trifluoromethoxy)pyridine-3-acetic acid
2-(Difluoromethyl)-4-nitro-3-(trifluoromethyl)pyridine-6-sulfonyl chloride
4-(Chloromethyl)-2-(difluoromethyl)-3-(trifluoromethyl)pyridine-6-sulfonyl chloride
5-Chloro-2-mercaptoisonicotinonitrile