4-Hydroxy-5-nitropyridazin-3(2H)-one
3-Chloro-5-nitro-1H-pyrrolo[2,3-c]pyridine
1-(6-Bromo-3,5-dimethylpyridin-2-yl)ethanone
7-Bromo-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine
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