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Structural determination of silymins A and B, new pentacyclic triterpenes from Silybum marianum , by 1D and 2D NMR spectroscopy
Author(s) -
Ahmed Ejaz,
Noor Atia tun,
Malik Abdul,
Ferheen Sadia,
Afza Nighat
Publication year - 2007
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1881
Subject(s) - chemistry , silybum marianum , terpene , dept , two dimensional nuclear magnetic resonance spectroscopy , stereochemistry , nuclear magnetic resonance spectroscopy , ethyl acetate , proton nmr , organic chemistry , traditional medicine , medicine
Silymins A (1) and B (2), the new pentacyclic triterpenes, have been isolated from ethyl acetate fraction of Silybum marianum and their structures assigned from 1 H and 13 C NMR spectra, DEPT and by 2D COSY, NOE and HMBC experiments. Copyright © 2007 John Wiley & Sons, Ltd.