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Structures of new secofriedelane and friedelane acids from Calophyllum inophyllum of French Polynesia

✍ Scribed by F. Laure; G. Herbette; R. Faure; J.P. Bianchini; P. Raharivelomanana; B. Fogliani


Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
102 KB
Volume
43
Category
Article
ISSN
0749-1581

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✦ Synopsis


Abstract

Three new friedelane‐type triterpenoids, 3,4‐secofriedelan‐3,28‐dioic acid (1), 27‐hydroxyacetate canophyllic acid (2) and 3‐oxo‐27‐hydroxyacetate friedelan‐28‐oic acid (3), were isolated from the leaves of Calophyllum inophyllum (Clusiaceae) grown in French Polynesia. Their structures were established by the concerted application of 2D NMR techniques including gs‐COSY, gs‐HMQC and gs‐HMBC. Copyright © 2004 John Wiley & Sons, Ltd.


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