Hydrochloric Acid → HCID 178463047, compound

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Reaction Steps

The hydrochloric acid salt is obtained by dissolving 18 g. of 3,4-dimethyl-1-ethyl-5-(1-piperidinylmethyl)-1H-pyrazolo[3,4-b]pyridin-6-ol in 250 ml. of hot dimethylformamide and adding 10 ml. of alcoholic hydrochloric acid (332 g. HCl/1). After cooling 17.8 g. (88%) of the hydrochloride (1:1) are obtained, m.p. 291°-294° (dec.). The hydrobromide is obtained by utilizing hydrobromic acid instead of hydrochloric acid.

Provenance & Evidence