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Structure determination of ramosine, a guaianolide, by NMR spectroscopy

✍ Scribed by Sher Bahadar Khan; Nighat Afza; Abdul Malik; Azhar ul Haq; Zaheer Ahmed

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
112 KB
Volume
42
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

Ramosine, a new sesquiterpene lactone, was isolated from the chloroform fraction of Amberboa ramosa and the structure was assigned as 4β‐(hydroxymethyl)‐3β,4α‐dihydroxy‐8α‐[(S)‐3‐hydroxy‐2‐ethylenepropionyloxy]‐1αH, 5αH,6βH,7αH,11βH,11α‐methylguaia‐10(14)‐en‐6, 12‐olide by extensive NMR studies. Copyright © 2004 John Wiley & Sons, Ltd.

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