Methyl 3-(chloromethyl)-4-cyano-5-(trifluoromethoxy)pyridine-2-acetate
2-Nitro-6-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-sulfonyl chloride
2-(Difluoromethyl)-3-nitropyridine-6-carbonyl chloride
4-Chloro-2-(difluoromethyl)-6-methylpyridine-3-acetic acid