Ethyl 5-bromopyrazolo[1,5-A]pyridine-3-carboxylate
Ethyl 5-nitropyrazolo[1,5-A]pyridine-3-carboxylate
Ethyl 1H-pyrazolo[3,4-C]pyridine-3-carboxylate
5-CHLORO-1H-PYRAZOLO[3,4-C]PYRIDINE
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