期刊
TETRAHEDRON
卷 58, 期 45, 页码 9169-9178出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4020(02)01196-1
关键词
camptothecin; Ophiorrhiza pumila; alkaloids
Hairy roots of Ophiorrhiza pumila, a rubiaceous camptothecin-producing plant, were obtained. From an investigation of the secondary metabolites, it was found that the hairy roots produced camptothecin and its related alkaloids, i.e. (3S)-pumiloside, (3S)- and (3R)-deoxypumilosides and strictosamide. We also isolated two new camptothecinoids, OPHR-23 and OPHR-17, the structures of which including the absolute configurations, were determined by spectroscopic analyses and chemical conversion from tryptamine and secologanin. (C) 2002 Elsevier Science Ltd. All rights reserved.
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