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