Alkaloids from the Leaves of <i>Daphniphyllum longeracemosum</i><scp>Rosenth</scp>.

Abstract

Abstract magnified image Four new Daphniphyllum alkaloids, daphlongamines E–H ( 1 – 4 , resp.), along with 19 known alkaloids, were isolated from 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.