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Planta Med 2014; 80 - PD102
DOI: 10.1055/s-0034-1382523
DOI: 10.1055/s-0034-1382523
Seven C19-norditerpenoid alkaloids from Delphinium elatum
Seven new C19-norditerpenoid alkaloids, N-formyl-4,19-secopacinine (1), iminoisodelpheline (2), iminodelpheline (3), iminopaciline (4), 6-dehydroeladine (5), elpacidine (6), and melpheline (7), have been isolated from Delphinium elatum cv. Pacific Giant together with six known C19-norditerpenoid alkaloids, delpheline, pacinine, isodelpheline, yunnadelphinine, delcorine, and 6-dehydrodelcorine. The structures of these alkaloids were determined by their ms, 1D and 2D-nmr data. 6-Dehydrodelcorine were isolated which have not previously been found in this plant.