New Eremophilane Sesquiterpenes from Ligularia japonica

Four new eremophilane‐type sesquiterpenes, 3β‐(acetyloxy)‐6β‐(2‐methylbutanoyloxy)‐10β‐hydroxyeremophil‐7(11)‐en‐12,8α‐olide (1), 3β‐(acetyloxy)‐6α,7α‐epoxy‐11‐noreremophil‐9(10)‐ene‐8,11‐dione (2), 3β‐hydroxy‐11‐noreremophila‐6(7),9(10)‐diene‐8,11‐dione (3), and 3β‐(3‐methylbutanoyloxy)‐11‐noroxoer...

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Bibliographic Details
Published inHelvetica chimica acta Vol. 92; no. 2; pp. 357 - 361
Main Authors Xu, Ji-Qing, Hu, Li-Hong
Format Journal Article
LanguageEnglish
Published Zürich WILEY-VCH Verlag 01.02.2009
WILEY‐VCH Verlag
Wiley
Subjects
Chemistry
Chemistry, Multidisciplinary
Eremophilanes
Ligularia japonica
Physical Sciences
Science & Technology
Sesquiterpenes
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Summary:Four new eremophilane‐type sesquiterpenes, 3β‐(acetyloxy)‐6β‐(2‐methylbutanoyloxy)‐10β‐hydroxyeremophil‐7(11)‐en‐12,8α‐olide (1), 3β‐(acetyloxy)‐6α,7α‐epoxy‐11‐noreremophil‐9(10)‐ene‐8,11‐dione (2), 3β‐hydroxy‐11‐noreremophila‐6(7),9(10)‐diene‐8,11‐dione (3), and 3β‐(3‐methylbutanoyloxy)‐11‐noroxoeremophila‐6(7),9(10)‐diene‐8,11‐dione (4) were isolated from roots of Ligularia japonica. The structures of the new compounds were elucidated through spectral studies including HR‐EI‐MS, IR, and NMR data.
Bibliography:ArticleID:HLCA200800340
istex:2A29448E1470CEADFB878983E69F41CC89305B2D
ark:/67375/WNG-GC3PVD4D-5
ISSN:0018-019X
1522-2675
DOI:10.1002/hlca.200800340