蘭嶼肉桂葉部成分之研究

黃俐瑋

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蘭嶼肉桂葉部成分之研究

Studies on the constituents of the leaves of Cinnamomum kotoense Kanehira ＆ Sasaki

黃俐瑋 , Masters　　Advisor：李宗徽　　

繁體中文

蘭嶼肉桂；樟科；抑制增生活性；人類周邊血管單核球細胞； Cinnamomum kotoense ； Lauraceae ； cinnakotolactone ； kaempferol 3-O-alpha-L-[2''''-(Z)-p-coumaroyl-4''''-(E)-p-coumaroyl] rhamnopyranoside ； antiproliferation activitie ； PBMC

Abstract │ Reference (78) │ Times Cited (2) │ Altmetrics

Abstract 〈TOP〉

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Cinnamomum kotoense (Lauraceae), an arbor indigenous to Taiwan, is found only in Lanyu Island. Recently, leaf extracts of C. kotoense were found to exhibit significant antiproliferation activity on peripheral blood human mononuclear cells (PBMC) in our preliminary studies. Therefore, we investigated the chemical constituents of the leaves of C. kotoense. Totally 16 compounds including seven flavanoids (1, 2, 5 – 9), two megastigmanes (3, 4), two gamma-lactones (12, 13), one diterpenoid (14), one steroid (16), and three others (10, 11, 15) were isolated and identified. Their structures were elucidated to be kaempferol 3-O-alpha-L-[2''-(Z)-p -coumaroyl-4''-(E)-p-coumaroyl] rhamnopyranoside (1), kaempferol 3-O-alpha-L-[2'',4''-di-(E)-p-coumaroyl] rhamnopyranoside (2), (6R,7E,9R) -megastigman-3-one-4-ene-9,13-diol (3), (6R,7E,9S)-megastigman-3-one -4-ene-9,13-diol (4), kaempferol 3-O-alpha-L-rhamnopyranoside (5), rutin (6), kaempferol 3-O-rutinoside (7), quercitrin (8), (-)-epi-catechin (9), 2-(3,4-dihydroxyphenyl)ethyl-O-beta-D-glucopyranoside (10), adenosine (11), cinnakotolactone (12), isolinderanolide B (13), trans-phytol (14),alpha -tocopherol (15) and beta-sitosterol (16) on the basis of spectroscopic analysis. Of these compounds identified, 1 and 12 are new. In addition, results of biological tests indicated that 1 and 2 exhibited antiproliferation activities toward phytohemagglutinin-stimulated PBMC with an IC50 value of 5.5 M and 6.1?M, respectively.

Reference ( 78 ) 〈TOP〉

2.Huang, T. C.; Ed. Flora of Taiwan; National Science Council of the Republic of China: Taipei, 1996; Vol. 2, pp. 443-444.
連結：
3.Kuo, Y. H.; Chen, W. C.; Lin, Y. T. J. Chin. Chem. Soc. 1984, 31,159.
連結：
6.陳甫勣，高雄醫學大學天然藥物研究所碩士論文，2004。
連結：
7.Kuo, Y. H.; Shue, M. J. J. Chin. Chem. Soc. 1991, 38,65.
連結：
9.Yuan, A.; Qin, L.; Jiang, D. Yaoxue Tongbao 1981, 16,631.
連結：

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