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http://hdl.handle.net/11455/68452| 標題: | Lanostane-type triterpenoids from Diospyros discolor | 作者: | Chen, C.R. Cheng, C.W. Pan, M.H. Liao, Y.W. Tzeng, C.Y. Chang, C.I. |
關鍵字: | Diospyros discolor;triterpene;24-ethyl-3;beta-methoxylanost-9(11)-en-25-ol;3;beta-methoxy-24-methylenelanost-9(11)-en-25-ol;3;beta-methoxy-25-methyl-24-methylenelanost-9(11)-en-21-ol;3;beta-methoxy-24-methyllanosta-9(11),25-dien-24-ol;lupane-type triterpenes;maritima blume;naphthoquinone derivatives;pentacyclic triterpenes;constituents;stem;heartwood;bark | Project: | Chemical & Pharmaceutical Bulletin | 期刊/報告no：: | Chemical & Pharmaceutical Bulletin, Volume 55, Issue 6, Page(s) 908-911. | 摘要: | Four new lanostane-type triterpenes, 24-ethyl-3 beta-methoxylanost-9(11)-en-25-ol (1), 3 beta-methoxy-24-methyl-enelanost-9(11)-en-25-ol (2), 3 beta-methoxy-25-methyl-24-methylenelanost-9(11)-en-21-ol (3) and 3 beta-methoxy-24m ethyllanosta-9(11),2 5-dien-24-ol (4) together with three known triterpenes, betulinaldehyde, betulinic acid methyl ester, and ursaldehyde have been isolated from the methanol extract of the twigs of Diospyros discolor. The structures of those new compounds were elucidated by spectroscopic methods. |
URI: | http://hdl.handle.net/11455/68452 | ISSN: | 0009-2363 | DOI: | 10.1248/cpb.55.908 |
| Appears in Collections: | 期刊論文 |
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