3-Amino-5-mercaptopicolinonitrile
4-(Chloromethyl)-2-cyano-6-(difluoromethyl)-3-(trifluoromethyl)pyridine
4-(Fluoromethyl)-6-methyl-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
2-(Difluoromethyl)-3-nitro-5-(trifluoromethoxy)pyridine-4-carbonyl chloride