Hydrochloric Acid → HCID 22627192, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 3-isobutyryl-1-(2-nitrobenzyl)-2-propylindole-6-carboxamide (316 mg) in methanol (10 ml) was hydrogenated over 10% palladium on carbon at 20° C. for 6 hours. The catalyst was filtered off and the filtrate was evaporated in vacuo. The residue was chromatographed on silica gel eluting with a mixture of methanol and chloroform 1:30) to give an oil which was dissolved in a mixture of chloroform (10 ml) and methanol (20 ml). To this solution was added 10% hydrogen chloride in methanol (0.9 ml), and the mixture was stirred at 20° C. for 1 hour and evaporated in vacuo. The residue was recrystallized from a mixture of methanol and diisopropyl ether to give 1-(2-aminobenzyl)-3-isobutyryl-2-propylindole-6-carboxamide hydrochloride (415 mg) as colorless crystals.

Provenance & Evidence