Structure Identification: |
Nat Prod Res. 2016;30(5):565-9. | A new sesquiterpenoid quinone with cytotoxicity from Abelmoschus sagittifolius.[Pubmed: 26230217 ] | METHODS AND RESULTS: A new sesquiterpenoid quinone, Acyl hibiscone B (1), together with five known compounds, (R)-lasiodiplodin (2), (R)-De-O-methyllasiodiplodin, (3) dibutyl phthalate (4), (R)-9-phenylnonan-2-ol (5) and hibiscone B (6), was obtained from the stem tuber of Abelmoschus sagittifolius. The structure of compound 1 was elucidated by analysing its (1)H and (13)C NMR, (1)H-(1)H COSY, HSQC, HMBC, NOESY and HR-ESI-MS values. CONCLUSIONS: Compound 1 showed significant cytotoxicity against Hela and HepG-2 human cancer cell lines. | Nat Prod Res. 2014;28(15):1210-3. | Chemical constituents from Gouania longipetala and Glyphaea brevis.[Pubmed: 24910899 ] | METHODS AND RESULTS: Five compounds were isolated altogether from the two medicinal plants. Glycerol monotricosanoate (1), palmarumycin BG1 (2) and De-O-methyllasiodiplodin (3) were isolated from Gouania longipetala. In addition, epicatechin (4) and its dimer procyanidin B2 (5) were isolated from the stem bark of Glyphaea brevis. Their structures were elucidated by using spectroscopic experiments.
CONCLUSIONS:
They exhibited radical scavenging and moderate antibacterial effects. |
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