Hydrochloric Acid → HCID 178511338, compound

Participants

Reaction Steps

3-(Naphthalene-1-sulfonyl)-1H-indazole-5-carbaldehyde (0.3 mmol) was stirred for 24 hrs with the excess of ethylene diamine (1 mmol) in methanol. Sodium borohydride (0.6 mmol) was added and stirring continued for another 24 hrs. After completion, the volatiles were removed in vacuo, crude material diluted with cold water, acidified to pH 3.4, filtered off, washed on a filter with cold water and dried to afford the target material as a free base. The latter was converted into hydrochloride salt by dissolution in methanol, followed by treatment with the excess of 2N HCl and the evacuation of the volatiles in vacuo to afford the title compound, mp>200° C.; MS (ES+) 381[M+H]+

Provenance & Evidence