4-Iodo-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
4-Bromo-5-chloro-3-hydroxy-2-(trifluoromethoxy)pyridine
5-(Chloromethyl)-2-(difluoromethyl)-4-(trifluoromethyl)pyridine-3-sulfonyl chloride
2,6-Diamino-3-(trifluoromethoxy)pyridine-5-sulfonyl chloride