摘要
钟萼木(Bretschneidera sinensis Hemsl.)又名伯乐树,系钟萼木科(Bretschnei-deraceae)钟萼木属的稀有保护植物。该科仅此1属1种,为我国特有山。分布于云南、广东、广西、江西、浙江、湖南、贵州和四川,生于海拔500—1500 m 的山地林中。树皮有祛风活血作用。钟萼木的化学成分尚未见报道。为研究其活性物质。
Four compounds were for the first time isolated from trunk of Bretschneidera sinensis Hemsl.grown in Yunnan.They were identified as 3-epi-betulinic acid(1), 3,5,7-tri-hydroxy-flavanonol(pinobanksin)(2),daucosterol(3)and β-sitosterol (4),respectively by chemical and spectral(IR,NMR,and MS)analyses.1 and 2 were the main components.
关键词
钟萼木
化学成分
Bretschneidera sinensis Hemsl.
3-epi-betulinic acid
3,5,7-trihydroxy-flavanonol(pinobanksin)
Daucosterol
β-sitosterol
