5-(Aminomethyl)-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetic acid
4-(Aminomethyl)-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-acetic acid
2-Methyl-5-nitro-6-(trifluoromethoxy)pyridine-3-carboxaldehyde
4-(Aminomethyl)-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-acetic acid