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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.
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.
ISSN: 0009-2363
DOI: 10.1248/cpb.55.908
Appears in Collections:期刊論文

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