Ethyl 3-bromo-5-(difluoromethyl)-4-nitropyridine-2-acetate
2-Fluoro-4-(trifluoromethoxy)pyridine-6-sulfonyl chloride
4-Bromo-3-ethyl-2-nitropyridine
4-Chloro-3-methyl-5-(trifluoromethoxy)pyridine-2-acetonitrile
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