Methyl 3,4-dihydroxy-5-(trifluoromethoxy)pyridine-2-carboxylate
3-Amino-2-(difluoromethyl)-5-fluoropyridine-6-carbonyl chloride
4-Fluoro-5-(trifluoromethoxy)pyridine-2-sulfonyl chloride
2-Chloromethyl-4-fluoro-3-methylpyridine
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