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|Title:||Revision of the NMR assignments of pterostlbene and of dihydrodehydrodiconiferyl alcohol: Cytotoxic constituents from anogeissus acuminata|
|Authors:||Agnes M. Rimando|
John M. Pezzuto
Norman R. Farnsworth
University of Illinois at Chicago
The Forest Herbarium, Thailand Ministry of Natural Resources and Environment
|Keywords:||Biochemistry, Genetics and Molecular Biology|
|Citation:||Natural Product Letters. Vol.4, No.4 (1994), 267-272|
|Abstract:||Further phytochemical work on Anogeissus acuminata var. lanceolata (Combretaceae) led to the isolation of pterostiibene (1), dihydrodehydrodiconifery! alcohol (2), and conocarpan (3). The structure of these compounds were determined by spectroscopic means, mainly through ID and 2D NMR experiments. A revision of some of the 13 C NMR chemical shifts of 1 and 2 were made possible by HETCOR, FLOCK, and selective INEPT experiments. Homonuclear spin-decoupling and 'H^H COSY experiments also enabled the precise assignment of the 'H NMR chemical shifts of 2. Compounds 1–3 exhibited in vitro cytotoxicity in various cancer cell lines. This is the first isolation of 1–3 from Anogeissus. © 1994, Taylor & Francis Group, LLC. All rights reserved.|
|Appears in Collections:||Scopus 1991-2000|
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