2-(Difluoromethyl)-4-nitro-3-(trifluoromethyl)pyridine-5-sulfonyl chloride
4-Iodo-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride
3-(Chloromethyl)-2-cyano-4-(difluoromethyl)-6-hydroxypyridine
2-(2,3,5-Trichlorophenyl)-3-(trifluoromethyl)pyridine-4-acetic acid