Bis-cephalezomines A–E from Cephalotaxus harringtonia var. nana

Tetrahedron
2004.0

Abstract

Five new dimeric Cephalotaxus alkaloids, bis-cephalezomines A-E (1-5), have been isolated from the leaves of Cephalotaxus harringtonia var. nana, and the structures and stereochemistry were elucidated on the basis of spectroscopic data including 2D NMR and FABMS/MS spectra, and chemical means. © 2004 Elsevier Ltd. All rights reserved.

DOI： 10.1016/j.tet.2004.06.070

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