2-Mercapto-5-(perfluorophenyl)-3-(trifluoromethyl)pyridine
Methyl 6-cyano-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-acetate
4-Bromo-2-(fluoromethyl)-6-methoxy-3-(trifluoromethoxy)pyridine
5-Amino-2-(chloromethyl)-3-cyano-6-(difluoromethyl)pyridine