Methyl 2-chloro-6-nitro-4-(trifluoromethoxy)pyridine-3-acetate
3-Amino-4-(fluoromethyl)-6-(trifluoromethoxy)pyridine-2-carboxylic acid
3-(Chloromethyl)-4-(difluoromethyl)-5-iodo-2-methoxypyridine
3-(Aminomethyl)-4-bromo-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine