倍半萜

倍半萜类化合物生理活性研究进展

Advanced of sesquiterpenoids bioactivity

健康和受害后的马尾松针叶挥发物的组成主要包括四大类物质，即脂肪酸族化合物（含绿叶挥发物）、单萜、含氧单萜及倍半萜类物质。

The volatiles of intact and damaged P. massoniana belongs to 4 different chemical classes including fatty acid derivatives , hydrocarbon monoterpenes , oxygenated monoterpenes and sesquiterpenoids .

β-二氢沉香呋喃倍半萜的~（13）cNMR取代规律

The ~ ( 13 ) C NMR Substituted Rules of β - Dihydroagarofuran

HPLC同时测定莪术油中3种倍半萜类成分的含量

Simultaneous HPLC determination of three sesquiterpenes content in Oleum Curcumae

吉马烷型倍半萜构型和构象的NMR数据分析

Analysis of the configuration and conformation of germacrane type sesquiterpenoids

大戟属植物中二萜酯和倍半萜甙结构的2DNMR研究

2D NMR studies on diterpene ester and sesquiterpene Glucoside from the genus Euphorbia

二氢沉香呋喃倍半萜的2DNMR研究

Study of 2D NMR of dihydroagarofuran sesquiterpenes

以易得的对映体纯的亚砜为手性辅基诱导的不对称共轭加成反应为关键反应，对映选择性地合成了倍半萜（S）和（R）-Cururphenol。

The key step in this synthesis is asymmetric conjugate addition using the readily available optically pure sulfoxide as chiral auxiliary ;

5支15W紫外灯相距20cm照射15min低于1支相同的紫外灯处理；在相同的UV作用下，开花前辣椒叶片倍半萜环化酶活性显著高于开花以后的辣椒叶片。

The leaves before flowering showed higher sesquiterpene cyclase activity than that of leaves after flowering .

而含氧单萜、含氧倍半萜类则正好相反，HD法所提挥发油中含氧萜类明显高于SCFE。

Relative contents of oxygenated monoterpene and sesquiterpene were higher in the oil isolated by HD than by SCFE .

作者据此提出了倍半萜类抗癌剂的两个亲电活性基团分别与RNA或DNA的双股核苷酸链上的碱基发生电荷转移络合的抗癌机理。

It is postulated that this charge transfer complexing between the two electrophilic groups in sesquiterpenoids and the bases in double helix of DNA or / and RNA may contribute to the antitumor mechanism of this class of compounds .

其中，萜类挥发性物质包括单萜和倍半萜的代谢研究最为深入，已有超过40种的萜类合成酶（TPS）基因被克隆和进行功能表征。

The elucidation of their metabolic pathways leads to the cloning and characterization of more than 40 terpene synthases ( TPSs ) from different kinds of species .

首先我们提取了该植物的挥发油，经GC-MS分析，确定了23个成份，用柱层析分离得到1个化合物，并用波谱方法鉴定了其结构为吉马烷型倍半萜内酯。

First , we extracted volatile oil from it , examined its compositions by GC-MS and identified twenty-three compounds , isolated one compounds by column adsorption chromatography and identified its structure of a germacrane-type sesquiterpenoid lactone .

70%高氯酸可作为柏木油中倍半萜烃进行乙酰化反应的第二催化剂组分，用以代替部分PPA。

70 % perchloro acid can be as a second component of catalyst , instead of partial PPA , to promote acetylations Of sesquiterpenes in cedarwood oil .

萜类合酶催化单萜、倍半萜和二萜生物合成，即分别催化GPP、FPP和GGPP形成单萜、倍半萜和二萜。

Terpene synthases catalyse the biosynthesis of monoterpenes , sesquiterpenes and diterpenes with the GPP , FPP and GGPP as substrates , respectively .

党参（CodonoPsisPilosula）是一种常用中药。含有多糖，皂甙，倍半萜类，多酚类，甙类，生物碱类，挥发油等多种成分。

Codonopsis pilosula is a commonly used traditional Chinese medicine , which contains polysaccharides , saponins , sesquiterpenes , polyphenols , glycosides , alkaloids , volatile oil et al .

结论化合物1为新的eremophilane型倍半萜，化合物2为新的天然产物。

Conclusion Compound 1 is a new eremophilane and compound 2 is a new natural compound .

小白菊内酯（panhenolide，PTL）是从中草药艾菊中提取的，属于倍半萜稀内酯类化合物，在一些西方国家，早年间已被提纯并用于消炎镇痛之用。

Parthenolide ( PTL ) is a sesquiterpene dilute lactones , extracted from Chinese herbs tansy early years in some Western countries , has been purified and used for the anti-inflammatory analgesic .

利用高分辨快原子轰击质谱（HR-FABMS），以（甘油+氯化钠）为基质测定了9个新的β-二氢沉香呋喃倍半萜多酯和生物碱的HR-FABMS。

The HR-FABMS spectra of nine new β - dihydroagarofuran sesquiterpene polyol esters and alkaloids were analyzed with glycerol plus sodium chloride as matrix .

挥发油中含有7种倍半萜成分，其中以β丁香烯（βcaryophyllene），γ藿香烯（γpatchoulene）含量较高，分别占总挥发油的12%，1.86%。

The volatile oil contained 7 sesquiterpene components . The content of β - caryophyllene and γ & patchoulene was higher among them , 12 % and 1.86 % of total volatile oil , respectively .

倍半萜化合物对有机磷中毒小鼠的实验治疗

Effects of Sesquiterpenoid in Treatment the Mice Poisoned by Organophosphorus Pesticides

同时含有少量倍半萜和二萜类物质。

The volatile substance contained a little of sesquiterpenes and diterpenoids .

木香的倍半萜类化学成分及其肿瘤细胞毒活性研究

Studies on sesquiterpenes from root of Aucklandia lappa and their cytotoxic activity

背景：天然二倍半萜类化合物是一类重要的萜类化合物。

Background : Sesterterpene is an important class of terpenoids .

旋覆花的主要成分为倍半萜内酯类化合物。

The main components of I. japonica are sesquiterpene lactones .

化合物类型涉及倍半萜、三萜、甾体、黄酮。

These compounds referred to sesquiterpenoids , triterpenoids , steroids and flavonoids .

光学活性姜烯类倍半萜的合成及其抗生育活性的探索

Synthesis of optical active sesquiterpenes and the exploration of their antifertility effect

光学活性没药烯类倍半萜的合成研究

Studies on the synthesis of optical active bisabolene 's sesquiterpenes

七个倍半萜α-亚甲基-γ-内酯的圆二色散的研究

Circular dichroism study of seven sesquiterpene α - methylene - γ - lactones

这与狭叶羌活根茎和根的挥发油中单萜和倍半萜类化合物分别占总挥发油中化学成分的13·63%和67·93%不同。

Conclusion In the total essential oil of the rhizome and root of N.