Alkaloids from Galipea officinalis

Galipea officinalis Hancock is a shrubby tree reputed in folk medicine for its many properties which may be related to its alkaloid composition. We pr esent in this paper the structural elucidation of five quinoline alkaloids: cuspareine, cusparine, and galipine, that have been previously described. demethoxycusparine, newly isolated in this species of Galipea and a new qui noline alkaloid named galipinine which is the 3',4'-methylenedioxycusparein e.