3-Amino-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine-4-carboxylic acid
2-Bromo-5-(fluoromethyl)-4-methoxy-3-(trifluoromethoxy)pyridine
6-Bromo-4-fluoro-3-nitro-2-(trifluoromethoxy)pyridine
6-Bromo-4-(fluoromethyl)-2-methoxy-3-(trifluoromethoxy)pyridine