6-(Difluoromethyl)-4-nitro-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
2-Amino-5-(bromomethyl)-6-(difluoromethyl)-3-(trifluoromethyl)pyridine
2-Amino-5-(difluoromethyl)-3-methoxy-6-methylpyridine
3-Bromo-4-fluoro-6-iodo-2-(trifluoromethoxy)pyridine