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Identification of the configuration of neosartorin by long-range nuclear Overhauser effect measurements

✍ Scribed by Tibor Liptaj; Tran Nghia Pham; Bohusš Proksa; Dušan UhríN

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
139 KB
Volume
13
Category
Article
ISSN
0899-0042

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✦ Synopsis

Abstract

The relative configuration of the two xanthene units of neosartorin, a new ergochrome biosynthesised by the soil mould Neosartorya fischeri, was determined using a 1D double‐pulsed field gradient spin‐echo NOESY experiment. It was found that both units have the same relative stereochemistry. Long‐range nonbonding interactions between the substituents of different xanthene units stabilise the nonplanar configuration of the two aromatic rings A and A′ connecting both monomer units of neosartorin. Chirality 13:545–547, 2001. © 2001 Wiley‐Liss, Inc.

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