6-Amino-3-(difluoromethyl)-2-methoxypyridine-4-carbonyl chloride
2-(Bromomethyl)-6-(difluoromethyl)pyridine-3-sulfonyl chloride
6-(Difluoromethyl)-4-fluoro-2-hydroxypyridine-3-carboxaldehyde
6-Cyano-4-fluoro-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride