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Correction published on 11 November 2015, see Molecules 2015, 20(11), 20268.
Open AccessArticle

Two New Lanostane Triterpenoids from the Branches and Leaves of Polyalthia oblique

Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, Hainan, China
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Molecules 2014, 19(6), 7621-7628;
Received: 1 March 2014 / Revised: 26 May 2014 / Accepted: 4 June 2014 / Published: 6 June 2014
(This article belongs to the Section Natural Products Chemistry)
Two new lanostane triterpenoids, 20-hydroxyeuphorbol-7-one (1) and 15α-hydroxyeuphorbol-7,11-dione (2), together with four known triterpenoids, euphorbol-7-one (3), friedelin (4), stigmast-4-ene-6α-ol-3-one (5), stigmasta-4-en-3,6-dione (6), were isolated from ethanol extract of the branches and leaves of Polyalthia obliqua. The structures of 1 and 2 were elucidated on the basis of extensive spectroscopic analysis and comparisons with related known compounds. Antibacterial activities of two new compounds and four known compounds were tested. View Full-Text
Keywords: Polyalthia obliqua; triterpenoid; antibacterial activity Polyalthia obliqua; triterpenoid; antibacterial activity
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Wang, L.-K.; Zheng, C.-J.; Li, X.-B.; Chen, G.-Y.; Han, C.-R.; Chen, W.-H.; Song, X.-P. Two New Lanostane Triterpenoids from the Branches and Leaves of Polyalthia oblique. Molecules 2014, 19, 7621-7628.

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