Four new alkaloids, daphnezomines L-O (1-4), have been isolated from the stems of Daphniphyllum humile, and the structures and the relative stereochemistry were elucidated on the basis of spectroscopic data. The structure of daphnezomine L (1) was close to that of a biogenetic intermediate from secodaphnane to daphnane skeletons proposed previously. (C) 2002 Elsevier Science Ltd. All rights reserved.