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New Coumarins and Triterpenes from Calophyllum inophyllum

โœ Scribed by Jian Zou; Jian Wu; Shuang-Zhu Liu; Wei-Min Zhao

Publisher
John Wiley and Sons
Year
2010
Tongue
German
Weight
193 KB
Volume
93
Category
Article
ISSN
0018-019X

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โœฆ Synopsis

Abstract

Four new coumarins, 1โ€“4, and two new triterpenes, 5 and 6, along with nine known compounds have been identified from the leaves of Calophyllum inophyllum on the basis of spectroscopic analyses and chemical methods. The structure of apetalolide (7), previously reported from C. apetalum, was revised by means of 2Dโ€NMR, and the absolute configuration of the known compound inophyllum D (8) was established by a modified Mosher's method.

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## Abstract Three new friedelaneโ€type triterpenoids, 3,4โ€secofriedelanโ€3,28โ€dioic acid (**1**), 27โ€hydroxyacetate canophyllic acid (**2**) and 3โ€oxoโ€27โ€hydroxyacetate friedelanโ€28โ€oic acid (**3**), were isolated from the leaves of __Calophyllum inophyllum__ (Clusiaceae) grown in French Polynesia. T