5-Chloro-2-cyano-3-nitro-4-(trifluoromethoxy)pyridine
4-Bromo-2-(chloromethyl)-6-(trifluoromethoxy)pyridine-3-carboxylic acid
3-Bromo-5-(chloromethyl)-6-(trifluoromethoxy)pyridine-2-carboxylic acid
3-Bromo-6-(chloromethyl)-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine