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Molbank 2017, 2017(1), M936; doi:10.3390/M936

5,9,11-Trihydroxy-2,2-dimethyl-3-(2-methylbut-3-en-2-yl)pyrano[2,3-a]xanthen-12(2H)-one from the Stem Bark of Calophyllum tetrapterum Miq.

1
Natural Products Chemistry Research Group, Organic Chemistry Division, Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Surabaya 60115, Indonesia
2
Airlangga Health Science Institute, Universitas Airlangga, Surabaya 60115, Indonesia
*
Author to whom correspondence should be addressed.
Academic Editor: Ping-Jyun Sung
Received: 15 February 2017 / Revised: 17 March 2017 / Accepted: 18 March 2017 / Published: 21 March 2017
(This article belongs to the Section Natural Products)
View Full-Text   |   Download PDF [826 KB, uploaded 21 March 2017]   |  

Abstract

A new pyranoxanthone namely 5,9,11-trihydroxy-2,2-dimethyl-3-(2-methylbut-3-en-2-yl)pyrano[2,3-a]xanthen-12(2H)-one (1) was isolated from the stem bark of Calophyllum tetrapterum Miq. The structure of compound 1 was determined by means of spectroscopic methods including UV, IR, HRESIMS, 1D and 2D NMR. View Full-Text
Keywords: Calophyllum tetrapterum Miq.; pyranoxanthone; natural product Calophyllum tetrapterum Miq.; pyranoxanthone; natural product
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Tjahjandarie, T.S.; Saputri, R.D.; Tanjung, M. 5,9,11-Trihydroxy-2,2-dimethyl-3-(2-methylbut-3-en-2-yl)pyrano[2,3-a]xanthen-12(2H)-one from the Stem Bark of Calophyllum tetrapterum Miq.. Molbank 2017, 2017, M936.

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