Talapatra, Sunil K. ; Shresthaa, Kedar Man ; Pala, Milan K. ; Basak, Amit ; Talapatra, Bani (1989) Querspicatins A and B, two pentacyclic triterpenes from Quercus spicata Phytochemistry, 28 (12). pp. 3437-3442. ISSN 0031-9422
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/003194...
Related URL: http://dx.doi.org/10.1016/0031-9422(89)80361-9
Abstract
Two new triterpenes designated querspicatin A and querspicatin B have been isolated from the bark of Quercus spicata. They have been shown to be 3β-(3,4-dihydroxycinnamoyloxy)-9α-hydroxy-7-oxo-lup-20 (30)-ene and 3β,9α-dihydroxy-7-oxo-lup-20(30)-ene on the basis of their 1H NMR, 13C NMR and mass spectral data and chemical evidence.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Phytochemical Society of Europe. |
| Keywords: | Quercus spicata; Fagaceae; Pentacyclic Triterpenes; Querspicatin A; Querspicatin B; Lupeol; Hexacosanic Acid; 1H NMR; 13C NMR; MS |
| ID Code: | 1709 |
| Deposited On: | 05 Oct 2010 12:06 |
| Last Modified: | 13 Jan 2011 12:34 |
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