6-(Difluoromethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine-4-acetic acid
5-Iodo-2-methyl-3-(trifluoromethoxy)pyridine-4-carboxylic acid
Ethyl 2-hydroxy-3-nitro-6-(trifluoromethoxy)pyridine-4-acetate
2-(Difluoromethyl)-4-hydroxy-6-(trifluoromethoxy)pyridine-3-acetic acid