3-(3,5-Dichlorophenyl)-6-mercapto-2-(trifluoromethyl)pyridine
2-Bromo-5-fluoro-4-methoxy-3-(trifluoromethoxy)pyridine
3-(Difluoromethyl)-6-nitro-2-(trifluoromethyl)pyridine-4-sulfonyl chloride
3-(Difluoromethyl)-5-nitro-2-(trifluoromethyl)pyridine-4-sulfonyl chloride