3-Bromo-4-methoxy-1H-pyrazolo[4,3-c]pyridine
3,5-Dibromo-1H-pyrazolo[3,4-b]pyridine
4-Bromo-3-iodo-1H-pyrazolo[3,4-c]pyridine
5-Bromo-3-iodo-1H-pyrazolo[4,3-b]pyridine
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