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Sesquiterpenoids from the Aerial Parts of Inula japonica

โœ Scribed by Hai-Qun Gong; Quan-Xiang Wu; Lei-Lei Liu; Jun-Li Yang; Rui Wang; Yan-Ping Shi

Publisher
John Wiley and Sons
Year
2011
Tongue
German
Weight
220 KB
Volume
94
Category
Article
ISSN
0018-019X

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โœฆ Synopsis

Fourteen sesquiterpenoids with an eudesmane C-atom skeleton, including four new ones, (1b,5a,7b,8b,11b)-5-hydroperoxy-1-hydroxyeudesm-4(15)-eno-12,8-lactone (1), (1b,5a,7b,8b)-8-(acetyloxy)-5-hydroperoxy-1-hydroxycostic acid methyl ester (12), and a mixture of (1b,3b,4b,7b,8b)-1,3dihydroxyeudesma-5,11(13)-dieno-12,8-lactone ( ) and (1b,3b,4b,7b,8b,11b)-1,3-dihydroxyeudesm-5eno-12,8-lactone (8), were isolated from the aerial parts of Inula japonica (Asteraceae). Their structures were determined by extensive spectroscopic methods, and those of 7 and 12 confirmed by means of single-crystal X-ray diffraction analysis.

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