摘要
从红豆杉(Taxus chinensis)枝叶中分到五个微量紫杉烷类二萜,其中四个为新二萜,分别为:1β,5α,13α-trihydroxy-9α,10β-diacetate-2α-benzoatetaxa-4(20),11-diene(1),1β,13α-dihydroxy-9α,10β-d(?)acetate-2α-benzoate-5α-cinnamatetaxa-4(20),11-diene(2),1β,5α-dihydroxy-9α,10β,13α-triacetate-2α-benzoatetaxa-4(20),11-diene(3)和1β,2α,5α,9α,10β,13α-hexahydroxytaxa-4(20),11-d(?)ene(4),另外一个为已知二萜19-hydroxybaccatin Ⅲ(5).
Four new taxane diterpenes together with one known taxane diterpene wereisolated from the leaves and stems of Taxus chinensis.Their structures were establishedas 1β,5α,13α-trihydroxy-9α,10β-diacetate-2α-benzoatetaxa-4(20),11-diene (1);1β,13α-dihydroxy-9α,10β-diacetate-2α-bezoate-5α-cinnamatetaxa-(20),11-diene (2);1β,5α-dihydroxy-9α,10β,13α-triacetate-2α-bezoatetaxa-4(20),11-diene(3);1β,2α,5α,9α,10β,13α-hexahydroxytaxa-4(20),11-diene (4) and known 19-hydroxybaccatin Ⅲ(5) on the basis of spectroscopic analysis.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1991年第10期1023-1027,共5页
Acta Chimica Sinica
基金
国家自然科学基金
