4-(Difluoromethyl)-2-iodo-3-(trifluoromethoxy)pyridine-5-carboxylic acid
5-(Difluoromethyl)-3-iodo-4-(trifluoromethoxy)pyridine-2-carboxylic acid
2-(Bromomethyl)-3-methoxy-6-(trifluoromethoxy)pyridine-5-carboxaldehyde
2-(Difluoromethyl)-5-iodo-6-(trifluoromethoxy)pyridine-3-acetic acid