4-Chloro-6-nitro-3-(trifluoromethoxy)pyridine-2-carboxylic acid
6-(Bromomethyl)-2-(difluoromethyl)-4-hydroxypyridine-3-carboxaldehyde
2-Iodo-4-nitro-3-(trifluoromethoxy)pyridine-6-acetic acid
2-Chloro-4-methyl-3-(trifluoromethoxy)pyridine-6-carboxylic acid