Journal
MAGNETIC RESONANCE IN CHEMISTRY
Volume 47, Issue 11, Pages 989-993Publisher
WILEY
DOI: 10.1002/mrc.2482
Keywords
Calophyllum inophyllum; clusiaceae; pyranocoumarin; tamanolides; NMR; H-1 NMR; C-13 NMR; COSY; NOESY; HMQC; HMBC
Funding
- Delegation A la Recherche and MinistAMP
- re cle la Recherche of French Polynesia
- Ministere de I'Outre-Mer (MOM) of France
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Three new pyranocoumarin derivatives, tamanolide (1), tamanolide D (2) and tamanolide P (3), were isolated from the almond seeds of Calophyllum inophyllum L. (Clusiaceae) grown in French Polynesia. These compounds, having an unprecedented C-4 isobutyl substituent, have been characterized as a new class of pyranocoumarins called tamanolides. Their structures were elucidated on the basis of 1D and 2D NMR techniques (COSY, NOESY, HSQC and HMBC) in association with MS (HR-ESI-MS) data analysis. Copyright (C) 2009 John Wiley & Sons, Ltd.
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