Daphniglaucins D-H, J, and K, new alkaloids from Daphniphyllum glaucescens

Five new fused-hexacyclic alkaloids, daphniglaucins D (1), E (2), F (3), G (4), and H (5), and two new yuzurimine-type alkaloids, daphniglaucins J (6) and K (7), have been isolated from the leaves of Daphniphyllum, glaucescens, and the structures and relative stereochemistry were elucidated on the basis of spectroscopic data and chemical means. (C) 2004 Elsevier Ltd. All fights reserved.