Alkaloids from the Leaves of Daphniphyllum longeracemosum ROSENTH.

Four new Daphniphyllum alkaloids. daphlongamines E-H (1-4, resp.), along with 19 known alkaloids, were isolated front the leaves of Daphniphyllum longeracemosum. Their structures were characterized by spectroscopic methods, especially 2D-NMR techniques. It is noteworthy that aconitine- and veatchine-type diterpenoid alkaloids were also isolated from this species.