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Acylated manoyl oxide diterpenes of Stemodia trifoliata

✍ Scribed by Wildson Max B. da Silva; Edilberto R. Silveira; Otilia Deusdênia L. Pessoa


Book ID
102531532
Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
101 KB
Volume
48
Category
Article
ISSN
0749-1581

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✦ Synopsis


Abstract

Two new labdane diterpenes, 6α‐malonyloxy‐ethyl ester manoyl oxide and bis‐6α‐dioxymanoylmalonate, together with the known 6α‐hydroxymanoyl oxide, 6α‐malonyloxymaloyl oxide and betulinic acid were isolated from leaves of Stemodia trifoliata. Their structures were elucidated by spectroscopic studies (IR and HR‐ESI‐MS), including an extensive NMR (COSY, HSQC, HMBC and NOESY) analysis. Copyright © 2010 John Wiley & Sons, Ltd.