3-Bromo-6-(difluoromethyl)-4-methoxypyridine-2-carbonyl chloride
5-Fluoro-2-(pyridin-3-yl)benzene-1-sulfonyl chloride
4-(Difluoromethyl)-3-nitro-5-(trifluoromethoxy)pyridine-2-sulfonamide
Methyl 2-(difluoromethyl)-3-iodo-6-methoxypyridine-4-carboxylate