Methyl 6-(difluoromethyl)-3-nitro-2-(trifluoromethoxy)pyridine-4-acetate
3-Bromo-6-(chloromethyl)-4-nitro-2-(trifluoromethoxy)pyridine
4-Methyl-2-(trifluoromethyl)pyridine-6-sulfonyl chloride
2-Fluoro-5-(pyridin-3-yl)benzene-1-sulfonyl chloride
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