3-Cyano-4-methyl-6-(trifluoromethoxy)pyridine-2-carbonyl chloride
2-Bromo-6-methoxy-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
2-(Difluoromethyl)-6-methoxy-4-nitropyridine-3-sulfonyl chloride
3-Chloro-2-cyano-5-(difluoromethyl)-6-methoxypyridine