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Two new asterosaponins from the starfish Asterias rubens: application of a cryogenic NMR probe head

✍ Scribed by M. Sandvoss; A. Preiss; K. Levsen; R. Weisemann; M. Spraul

Publisher: John Wiley and Sons
Year: 2003
Tongue: English
Weight: 197 KB
Volume: 41
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1277

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✦ Synopsis

Abstract

We report two new asterosaponins from the Baltic starfish Asterias rubens along with their ^1^H and ^13^C NMR data. The compounds were isolated after on‐flow liquid chromatography–NMR–mass spectrometry screening indicated that they had not been identified before. The one‐ and two‐dimensional NMR experiments used to elucidate the structures were recorded using a 5 mm cryogenic probe head. The advantages of cryogenic probes for this kind of examination in comparison with conventional probe heads are discussed. Copyright © 2003 John Wiley & Sons, Ltd.

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