## Abstract A new prenylated flavanone, floranol (**1**) 3,5,7,2′‐ tetrahydroxy‐6‐methoxy‐8‐prenylflavanone and a known flavanone (dioclein) were isolated from the roots of __Dioclea grandiflora__ (Fabaceae). The structure and the relative stereochemistry were established by 2D NMR spectroscopic te
1H and 13C NMR structure determination of a new stereoisomer of isoreserpiline pseudoindoxyl from Rauvolfia grandiflora
✍ Scribed by N. M. Cancelieri; I. J. Curcino Vieira; L. Mathias; R. Braz-Filho
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 104 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0749-1581
- DOI
- 10.1002/mrc.1168
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✦ Synopsis
Abstract
An NMR study of a new stereoisomer of isoreserpiline pseudoindoxyl alkaloid is described. The complete ^1^H and ^13^C NMR assignments of the compound were carried out using COSY, HMQC and HMBC. Stereochemistry at carbons C‐2, C‐3, C‐15, C‐20 and C‐19 was established using values of ^1^H chemical shifts, coupling constants and NOESY experiments. Copyright © 2003 John Wiley & Sons, Ltd.
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