1973 年 93 巻 9 号 p. 1211-1214
The alkaloidal components of the leaves of Erythrina X bidwilli LINDL. (Leguminosae) were examined. The known erythrina alkaloids, erythraline (II) and erysodine (III), and the known benzylisoquinoline alkaloid, N-nororientaline (V), were isolated. Two new alkaloids which were named erythrinine (I) and erybidine (VII) were also isolated and characterized.