3-Bromo-5-chloro-4-nitro-2-(trifluoromethoxy)pyridine
2-Amino-4-(difluoromethyl)-5-(trifluoromethoxy)pyridine-3-acetic acid
4-Amino-6-(chloromethyl)-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
2-Amino-3-(difluoromethyl)-5-(trifluoromethoxy)pyridine-4-acetic acid