Alkaloids of Schelhammera pedunculata (Liliaceae). III. The structures of schelhammericine and alkaloids A, B, E, G, H, J, and K

Abstract

The structures of the new homoerythrina alkaloids, schelhammericine (III), alkaloids A (IV), G (VII), E (IX), B (X), H (XI), J (XII), and K (XIII), from Schelhammera pedunculata (Liliaceae) have been established. The major alkaloid isolated from another Schelhammera species, S. multiflora R.Br., has been shown to be alkaloid E (IX).