3-(Difluoromethyl)-6-nitro-2-(trifluoromethoxy)pyridine-4-acetic acid
4-(Difluoromethyl)-3-methoxy-2-(trifluoromethoxy)pyridine-6-carboxaldehyde
5-(Aminomethyl)-2-methyl-3-nitro-4-(trifluoromethoxy)pyridine
6-(Aminomethyl)-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-carboxaldehyde