Bruceines K and L from the Ripe Fruits of Brucea javanica
Publication in refereed journal


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替代計量分析
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其它資訊
摘要Bruceine K (1), a pentacyclic C20-quassinoid bearing a unique 12,20-epoxy moiety, and bruceine L (2), along with the ten known compounds (6S,7E)-6,9,10-trihydroxy- and (6S,7E)-6,9-dihydroxymegastigma-4,7-dien-3-one (3 and 4, resp.), cleomiscosins AC, luteoline, quercetine, bruceantinol, pinoresinol, and thevetiaflavone, were isolated from the ripe fruits of Brucea javanica. Bruceines K (1) and L (2) were determined to be (1 beta,2a,11 beta,12 beta,14,15 beta)-12,20-epoxy-1,2,11,13,14,15-hexahydroxypicras-3-en-16-one and (1 beta,2a,11 beta,12 beta,15 beta)-13,20-epoxy-1,2,11,12-tetrahydroxy-16-oxo-15-(senecioyloxy)picras-3-en-21-oic acid methyl ester (senecioic acid=3-methylbut-2-enoic acid), respectively, on the basis of NMR (1H- and 13C-NMR, DEPT, 1H,1H-COSY, NOESY, HMQC, and HMBC) and ESI-MS data. Among the known compounds, (6S,7E)-6,9,10-trihydroxy- and (6S,7E)-6,9-dihydroxymegastigma-4,7-dien-3-one (3 and 4, resp.), cleomiscosin C, luteoline, quercetine, and thevetiaflavone were isolated for the first time from the Brucea plants.
著者Zhao M, Lau ST, Zhang XQ, Ye WC, Leung PS, Che CT, Lin ZX
期刊名稱Helvetica Chimica Acta
詳細描述To ORKTS: doi: 10.1002/hlca.201100165
出版年份2011
月份11
日期1
卷號94
期次11
出版社Wiley
頁次2099 - 2105
國際標準期刊號0018-019X
語言英式英語
關鍵詞Brucea javanica; Bruceines K and L
Web of Science 學科類別Chemistry; Chemistry, Multidisciplinary; CHEMISTRY, MULTIDISCIPLINARY

上次更新時間 2020-24-11 於 00:22