3-(Difluoromethyl)-4-hydroxy-5-(trifluoromethoxy)pyridine-2-carboxylic acid
Methyl 4-iodo-3-methoxy-5-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 5-(difluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 4-iodo-6-methoxy-2-(trifluoromethoxy)pyridine-3-carboxylate