An NMR study of 3˛-and 3ˇ-friedelinol is described. In addition to conventional 1D NMR methods, 2D shift-correlated NMR experiments HMQC [( 1 J(C,H)], HMBC [ n J(C,H); n D 2 and 3] and 2D 1 H, 1 H-NOESY were used for 1 H and 13 C chemical shift assignments of these triterpenes.
1H and 13C assignments of two new triterpenes from Cladocolea grahami
✍ Scribed by María Yolanda Rios; A. Berenice Aguilar-Guadarrama
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 88 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0749-1581
- DOI
- 10.1002/mrc.1459
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✦ Synopsis
Abstract
The structure elucidation and ^1^H and ^13^C assignments of the new triterpenes 3β‐palmitoxy‐7β‐hydroxyolean‐12‐ene (1) and its hydrolysis product 3β,7β‐dihydroxyolean‐12‐ene (2) and 3β‐sn‐glyceroyl‐(1″‐palmitoxy)urs‐12‐ene (3), isolated from the aerial parts of Cladocolea grahami (Loranthaceae), are reported. Copyright © 2004 John Wiley & Sons, Ltd.
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