3-Chloro-6,7-dihydro-5H-cyclopenta[b]pyridine
5-Bromo-1H-imidazo[4,5-b]pyridine
3-Iodo-5-nitropyridin-4-ol
6-Chloro-4-nitro-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrrolo[2,3-b]pyridine
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