γ-lactones and ent-eudesmane sesquiterpenes from the endophytic fungus Eutypella sp. BCC 13199

Two new γ-lactones, eutypellins A (1) and B (2), and two ent-eudesmane sesquiterpenes, ent-4(15)-eudesmen-11-ol-1-one (3) and ent-4(15)-eudesmen-1α,11-diol (4), together with three known pimarane diterpenes, diaporthein B, scopararane A, and libertellenone C, were isolated from the endophytic fungus...

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Bibliographic Details
Main Authors: Isaka M., Palasarn S., Lapanun S., Chanthaket R., Boonyuen N., Lumyong S.
Format: Article
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-70349479408&partnerID=40&md5=9dfe3959c27c4707a95378c663292cfe
http://cmuir.cmu.ac.th/handle/6653943832/5803
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Institution: Chiang Mai University
Language: English
Description
Summary:Two new γ-lactones, eutypellins A (1) and B (2), and two ent-eudesmane sesquiterpenes, ent-4(15)-eudesmen-11-ol-1-one (3) and ent-4(15)-eudesmen-1α,11-diol (4), together with three known pimarane diterpenes, diaporthein B, scopararane A, and libertellenone C, were isolated from the endophytic fungus Eutypella sp. BCC 13199. The structures of these compounds were elucidated by interpretation of spectroscopic data. The absolute configuration of 4 was confirmed by application of the modified Mosher's method. Eutypellin A (1) and sesquiterpene 3 exhibited weak cytotoxic activities. © 2009 American Chemical Society and American Society of Pharmacognosy.