4'-O-Methylstephavanine from Stephania abyssinica

4'-O-Methylstephavanine from Stephania abyssinica 4'-O-Methylstephavanine from Stephania abyssinica (+)-3′,4′-dihydrostephasubine, a bisbenzylisoquinoline alkaloid from Stephania hernandifolia Alkaloids from the fruits of Stephania japonica Miers. I. Structure of stephabenine: A new hasubanan ester-ketal alkaloid. Alkaloids from the Fruits of Stephania japonica, 3. Structures of Prostephanaberrine and Stephanaberrine, Two New Hasubanan Alkaloids 2-N-Methylexcentricine, a New Alkaloid from Roots of Stephania excentrica A Novel Phenanthrene and An Undescribed Alkaloid from the Roots of Stephania tetrandra A 4,5-Dioxoaporphine from the Aerial Parts of Stephania tetrandra The protoberberine alkaloids of Stephania suberosa Alkaloids from the Fruits of Stephania japonica 2. Structures of Oxostephabenine and N, O-Dimethyloxostephine