Methyl 6-(difluoromethyl)-3-nitro-4-(trifluoromethoxy)pyridine-2-carboxylate
2-Cyano-4-(trifluoromethoxy)pyridine-5-sulfonyl chloride
2-Cyano-6-(difluoromethyl)-3-fluoro-4-methylpyridine
3-Bromo-2-(difluoromethyl)-5-methylpyridine-6-acetic acid
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