3-Amino-4-cyano-2-(difluoromethyl)pyridine-5-carboxylic acid
3-Chloro-5-methyl-2-(trifluoromethoxy)pyridine-6-carboxaldehyde
2-Hydroxy-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
5-Chloro-2-hydroxy-4-iodo-3-(trifluoromethoxy)pyridine
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