2016
DOI: 10.1248/cpb.c15-00878
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Terpenoid Composition and Base Sequences of <i>Ligularia virgaurea</i> (Asteraceae) Grown in the Hengduan Mountain Area in China and a Comment on Drawing Structures

Abstract: A chemical analysis of 30 samples of Ligularia virgaurea (Asteraceae) collected in Sichuan province and its adjacent territories in China was reviewed. These samples afforded 146 compounds, 73 of which were novel, and the chemical constituents were classified into 8 categories: (1) simple eremophilanes (without ring C) and eudesmanes including nor-derivatives, (2) furanoeremophilanes and lactones with a 1(10)-saturated bond, (3) furanoeremophilanes and lactones with a 1(10)-unsaturated bond, 1,10-epoxide, or 1… Show more

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Cited by 9 publications
(13 citation statements)
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“…The presence of a hydroperoxy proton at δ 8.59 (s) is an important evidence of the hydroperoxy moiety. 63 The evidence also due to 13 C chemical shift at C-11 (δ 83.8) 91 compared with that of compound 111 (δ 71.8). Compounds 107 and 108 are enol form of diketone.…”
Section: Introductionmentioning
confidence: 97%
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“…The presence of a hydroperoxy proton at δ 8.59 (s) is an important evidence of the hydroperoxy moiety. 63 The evidence also due to 13 C chemical shift at C-11 (δ 83.8) 91 compared with that of compound 111 (δ 71.8). Compounds 107 and 108 are enol form of diketone.…”
Section: Introductionmentioning
confidence: 97%
“…1 Reviews on natural products were recently published. [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] It is quite obvious that spectroscopic data are very important to identify the compound; otherwise, we further need to measure 2D nuclear magnetic resonance (NMR), specific rotations, and other physiological data. Therefore, the data for known compounds are very important, but it is not always possible to find such data, because sometimes they are quite old and not enough data are presented.…”
Section: Introductionmentioning
confidence: 99%
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“…Sesquiterpenoids, possessing a variety of different carbon cores, including eremophilanes, bisabolanes, oplopanes, benzofurans, and germacrenes, were investigated as the main components in the genus Ligularia (Asteraceae). More than 500 eremophilane sesquiterpenoids have been isolated from this genus . These sesquiterpenoids also displayed a variety of bioactivities including cytotoxic, anti-inflammatory, antibacterial, insecticidal, and antiproliferative activities. , Both structural diversity and unique biological activities have attracted scientists’ attention, and extensive phytochemical and biological investigations aiming at sesquiterpenoids from the genus Ligularia have been carried out by several Asian research groups over recent decades. , Of course, many other scientists have also made great contributions to the research of sesquiterpenoids in this genus .…”
mentioning
confidence: 99%