6-Chloro-1H-pyrazolo[4,3-b]pyridine-3-carboxylic acid
(S)-Methyl 1-(5-nitropyridin-2-yl)pyrrolidine-2-carboxylate
Methyl 1H-pyrazolo[4,3-c]pyridine-6-carboxylate
1-(Pyridin-4-ylmethyl)piperazine hydrochloride
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