2-(Difluoromethyl)-4-nitro-5-(trifluoromethoxy)pyridine-3-acetic acid
Methyl 3-bromo-6-hydroxy-2-(trifluoromethoxy)pyridine-5-carboxylate
Methyl 4-hydroxy-2-methyl-3-(trifluoromethoxy)pyridine-6-acetate
3-Amino-5-(chloromethyl)-2-(difluoromethyl)pyridine-4-carboxylic acid