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
| Main Authors: | Tjahjandarie, Tjitjik Srie, Saputri, Ratih Dewi, Tanjung, Mulyadi |
|---|---|
| Format: | Article PeerReviewed Image Book |
| Bahasa: | eng |
| Terbitan: |
MDPI AG, Basel, Switzerland
, 2017
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| Subjects: | |
| Online Access: |
http://repository.unair.ac.id/63049/1/Cover.pdf http://repository.unair.ac.id/63049/2/Bukti%20C19.%205%2C9%2C11-Trihydroxy-2%2C2-dimethyl-3-%282-methylbut-.........pdf http://repository.unair.ac.id/63049/3/Bukti%20C19%20Peer%20reviewer%20dan%20validasi%20Kadep.pdf http://repository.unair.ac.id/63049/ http://www.mdpi.com |
Daftar Isi:
- 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