Han Li, Huang Xueshi, Sattler Isabel, Dahse Hans-Martin, Fu Hongzheng, Lin Wenhan, Grabley Susanne
National Research Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100083, People's Republic of China.
J Nat Prod. 2004 Sep;67(9):1620-3. doi: 10.1021/np040062t.
Phytochemical investigation of the stem of Bruguiera gymnorrhiza yielded three new ent-kaurane diterpenoids (1, 2, and 3) and one new ent-beyerane diterpenoid (4) together with nine known ent-kaurane diterpenoids. All structures and the relative stereochemistry of the new compounds were determined by NMR spectroscopic studies. The absolute stereochemistry of 4 was determined by CD data. Some of the compounds showed moderate cytotoxic properties.
对木榄茎进行植物化学研究,得到了三种新的对映-贝壳杉烷二萜(1、2和3)和一种新的对映-贝叶烷二萜(4),以及九种已知的对映-贝壳杉烷二萜。通过核磁共振光谱研究确定了所有新化合物的结构和相对立体化学。通过圆二色光谱数据确定了4的绝对立体化学。其中一些化合物表现出中等的细胞毒性。