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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/33668
Title: Tricyclic and spirobicyclic norsesquiterpenes from the endophytic fungus Pseudolagarobasidium acaciicola
Authors: Mario Wibowo
Vilailak Prachyawarakorn
Thammarat Aree
Suthep Wiyakrutta
Chulabhorn Mahidol
Somsak Ruchirawat
Prasat Kittakoop
Chulabhorn Graduate Institute
Chulabhorn Research Institute
Chulalongkorn University
Mahidol University
South Carolina Commission on Higher Education
Keywords: Chemistry
Issue Date: 1-Jan-2014
Citation: European Journal of Organic Chemistry. Vol.2014, No.19 (2014), 3976-3980
Abstract: The new tricyclic and spirobicyclic norsesquiterpenes 1 and 2 and the new nor-chamigrane endoperoxide 3, together with the known sesquiterpenes steperoxide A (4), merulin B (5), and merulin C (6), were isolated from the endophytic fungus Pseudolagarobasidium acaciicola. The structures and absolute configurations of 1-3 were determined by analysis of spectroscopic data, as well as by single-crystal X-ray analysis. Compound 1 has a previously unobserved 6/5/5 fused tricyclic ring system, in which the five-membered (middle) ring is, as revealed by X-ray analysis, perpendicular to a six-membered ring. Compound 2 possesses a hitherto unknown 5/6 fused spirobicyclic ring system. The cytotoxic activities of the isolated compounds 1-6 were evaluated. Tricyclic and spirobicyclic norsesquiterpenes 1 and 2 were isolated from the endophytic fungus Pseudolagarobasidium acaciicola. The absolute configurations of 1 and 2 were addressed by single-crystal X-ray analysis. Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84903287004&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/33668
ISSN: 10990690
1434193X
Appears in Collections:Scopus 2011-2015

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