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4-Hydroxy-2-pyridinecarboxylic acid ethyl ester

5-Hydroxypyridine-3,4-dicarboxylic acid methyl ester

3-Hydroxyquinoline-2-carboxylic acid

3-Hydroxyquinoline-4-carboxylic acid

4-Hydroxyquinoline-3-carboxylic acid

3-Iodo-2-mercapto-5-nitropyridine

3-Iodo-6-mercaptopyridine

9-(Iodomethyl)anthracene

3-Iodo-2-methylpyridine

4-Iodo-2-methylpyridine

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