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4,5-Dibromopyridazin-3-one

3,6-Dichloropyridazine-4-carboxylic acid

3,6-Dihydroxy-4,5-dimethylpyridazine

3,6-dichloro-4,5-dimethylpyridazine

3,6-Dichloro-4-methylpyridazine

2-Quinoxalinecarboxylic acid

2-Bromo-4-fluoro-5-nitrophenol

2-Chloro-2-hydroxyiminoacetic acid ethyl ester

1-Boc-4-bromopiperidine

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