Harinantenaina Liva, Takahara Yusuke, Nishizawa Takashi, Kohchi Chie, Soma Gen-Ichiro, Asakawa Yoshinori
Faculty of Pharmaceutical Sciences, Tokushima Bunri University; Yamashiro-cho, Tokushima 770-8514, Japan.
Chem Pharm Bull (Tokyo). 2006 Jul;54(7):1046-9. doi: 10.1248/cpb.54.1046.
3Beta,4beta:15,16-diepoxy-13(16),14-clerodadiene (1) and a new clerodane diterpenoid designated thysaspathone (2) were isolated from the liverwort Thysananthus spathulistipus, while Radula appressa produced radulannin A (3), radulannin L (4), 2-geranyl-3,5-dihydroxybibenzyl (5), 2(S)-2-methyl-2-(4-methyl-3-pentenyl)-7-hydroxy-5-(2-phenylethyl) chromene (o-cannabichromene) (6), 6-hydroxy-4-(2-phenylethyl) benzofuran (7), and o-cannabicyclol (8). All of the isolated compounds inhibited nitric oxide (NO) production in lipopolysaccharide (LPS)-stimulated RAW 264.7 cells and the greatest inhibition was attributed to compound 5, with an IC50 value of 4.5 microM.
从叶苔类植物匙叶藓(Thysananthus spathulistipus)中分离出了3β,4β:15,16 - 二环氧 - 13(16),14 - 克罗烷二烯(1)和一种新的克罗烷二萜类化合物,命名为藓花素(2),而扁萼苔(Radula appressa)产生了扁萼苔宁A(3)、扁萼苔宁L(4)、2 - 香叶基 - 3,5 - 二羟基联苄(5)、2(S) - 2 - 甲基 - 2 - (4 - 甲基 - 3 - 戊烯基) - 7 - 羟基 - 5 - (2 - 苯乙基)色烯(邻大麻二酚)(6)、6 - 羟基 - 4 - (2 - 苯乙基)苯并呋喃(7)和邻大麻环醇(8)。所有分离出的化合物均抑制脂多糖(LPS)刺激的RAW 264.7细胞中一氧化氮(NO)的产生,其中抑制作用最强的是化合物5,其IC50值为4.5微摩尔。