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Triterpenoids from the Mangrove Plant Hibiscus tiliaceus

✍ Scribed by Chao Feng; Xiao-Ming Li; Nai-Yun Ji; Bin-Gui Wang

Publisher
John Wiley and Sons
Year
2008
Tongue
German
Weight
174 KB
Volume
91
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Three new triterpenoids with the rarely occurring nigrum skeleton, namely (20__E__)‐22‐hydroxynigrum‐20‐en‐3‐one (1), 21__β__‐hydroxynigrum‐22(29)‐en‐3‐one (2), and 21__α__‐hydroxynigrum‐22(29)‐en‐3‐one (3), were isolated from the mangrove plant Hibiscus tiliaceus. Additionally, five known triterpenoids including friedelin (4), 12‐oleanen‐3__β__‐ol (5), 3__β__‐hydroxy‐12‐oleanen‐28‐oic acid (6), 20(29)‐lupen‐3__β__,28‐diol (7), and cucurbita‐5,23‐dien‐3__β__,25‐diol (8) were also isolated and identified. The latter structures were elucidated by a detailed NMR and MS analyses, as well as by comparison with reported literature data.

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