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Complete assignment of 1 H and 13 C NMR data for three aryltetralin lignan lactones
Author(s) -
da Silva Rosangela,
Heleno Vladimir Constantino Gomes,
de Albuquerque Sérgio,
Bastos Jairo Kenupp,
e Silva Márcio Luis Andrade,
Donate Paulo Marcos,
da Silva Gil Valdo José
Publication year - 2004
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.1482
Subject(s) - chemistry , lignan , carbon 13 nmr , stereochemistry , two dimensional nuclear magnetic resonance spectroscopy , nuclear magnetic resonance spectroscopy
We describe the complete 1 H and 13 C NMR analysis of three aryltetralin lignan lactones (polygamain, morelensin and 4,5‐dimethoxymorelensin) using modern NMR techniques such as COSY, HMQC, HMBC, 2D‐ J ‐resolved and NOE experiments. The relative stereochemistry of these compounds, which is very important with regard to their biological activity, was completely determined. Copyright © 2004 John Wiley & Sons, Ltd.