摘要
<正> 前已报道在罗汉松科植物中存在具有抗肿瘤活性的二萜双内酯类化合物。为了摸清该科植物的化学成分,本文对小叶罗汉松(Podocarpus brevifolius(Stapf.)Foxw)(罗汉松科罗汉松属)枝叶中的化学成分进行了研究,分离得到10个化合物,运用化学及光谱学方法分别鉴定为异贝壳杉烯(isokaurene,1),△~9-异海松酸(△~9-isodextropimaric acid,
Ten compounds were isolated from the barks and leaves of Podocarpus brevifo- lius (Podocarpaceae) for the first time. They are identified as isokaurene (1), △~9- isodextropimaric acid (2), isoginkgetin (3), sciadopitysin (4), amentoflavone--4',4'', 7, 7'--tetramethylether (5), sequoyitol (6), β-sitosterol (7), daucosterol (8), β- sitosterone (9), and 3β, 6β-dihydroxy--stigmast--4--ene (10) by means of spectral analysis, comparison of physio-chemical data and throgh chemical method.
关键词
小叶罗汉松
化学成分
Podocarpus brevifolius
Diterpenoids
Sterols
Biflavonoids
Inositols
