2-Bromo-5-chloro-4-(difluoromethyl)pyridine-3-carboxylic acid
4-Fluoro-2-(trifluoromethoxy)pyridine-3-carbonyl chloride
2-Amino-3-(difluoromethyl)pyridine-6-sulfonyl chloride
4-Amino-2-iodo-3-(trifluoromethoxy)pyridine-5-acetonitrile
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