1) pentacyclic triterpane
五环三萜烷
1.
Distribution and sources of steranes and pentacyclic triterpanes in surface soils and bottom sediments from Tianjin;
天津地区表层土壤和河流沉积物中甾烷与五环三萜烷的分布特征及污染源分析
2) pentacyclic triterpene
五环三萜
1.
Recent Progress in Biotransformation of Pentacyclic Triterpenes;
五环三萜生物转化研究概述
2.
Aim:To search for novel modulators of glycogen metabolism through structural modifications of natural pentacyclic triterpenes.
目的:对天然五环三萜进行结构修饰,寻找新型糖原代谢调控药物。
3) pentacyclic triterpenoids
五环三萜
1.
Advances in studies on three pentacyclic triterpenoids and their derivatives against ADIS;
3种五环三萜类化合物及其衍生物抗艾滋病的研究进展
2.
By using silica gel column chromatography,Sephadex LH-20 chromatography and semi-preparative reversed phase liquid chromatography,four pentacyclic triterpenoids were isolated from n-butanol extract of caulis Marsdeniae tenocissimae.
利用硅胶柱色谱法、Sephadex LH-20凝胶柱色谱法及半制备高效液相色谱法,从乌骨藤的正丁醇萃取物中分离得到4种五环三萜类化合物。
3.
Results and conclusion Four pentacyclic triterpenoids and one sterol were obtained from Geum japonicum Thunb.
结果与结论从柔毛水杨梅甲醇提取物的乙酸乙酯部分中分离得到4个五环三萜类化合物和1个甾醇。
4) triterpene
[,trai'tə:pi:n]
五环三萜
1.
Results A new ursane-galactoside was isolated from the rhizomes of Potentilla anserine along with 2 known ursane- and oleanane-type triterpene glucosides.
结果:由JM首次分离纯化的三个化合物单体为五环三萜皂G类成分,其中乌苏烷型半乳糖G-2α,3β,19β-三羟基-12-烯-28-乌苏酸-β-D-吡喃半乳糖G-为新化合物(命名为 JMGII号)。
5) olean-type triterpenoids
五环三萜
1.
Three known olean-type triterpenoids were isolated from the plant Euonymus hederaceus Champ.
运用现代先进分离技术从卫矛科药用植物常春卫矛中分离得到3个已知齐敦果烷型五环三萜,运用质谱、核磁共振、红外光谱和紫外光谱等现代波谱技术,参考相关文献资料确定了化合物的结构,分别为3β-甲氧基-齐敦果-11-酮-18-烯、3,11-二羰基-齐敦果-12-烯和28-羟基-齐敦果-12-烯-3,11-二酮。
6) pentacyclic triterpenoid
五环三萜
1.
There are many oleanane and ursane pentacyclic triterpenoids in nature plants.
乌苏烷型和齐墩果烷型五环三萜在自然界分布广泛,且具有很好的药理活性。
2.
Pentacyclic triterpenoids - oleanolic acid is the main composition of functions of a variety of natural products, belonging to organic Triterpenoid acid, is widely distributed in nature.
五环三萜类化合物——齐墩果酸是多种天然产物的主要功能成分,属于有机三萜酸,在自然界中分布广泛,显示出多种生物活性。
3.
Ursolic acid, as a pentacyclic triterpenoid, is ubiquitous in the plant kingdom and exhibits various biological activities such as anti-tumor, anti-HIV, anti-hepatism, anti-inflammation, anti-diabets and hypoglycemic pharmacological actions.
熊果酸是一个分布广泛、含量丰富的天然五环三萜化合物,具有抗肿瘤、抗HIV病毒、保肝、抗炎、抗糖尿病等多种重要生物活性。
补充资料：五环[4.4.0.02,5.03,8.04,7]癸烷
分子式：
CAS号：
性质：又称五环[4.4.0.02,5.03,8.04,7]癸烷(pentacyclo[4.4.0.02,5.03,8.04,7]decane) 熔点102～104℃(在55～65℃伴随相交)。在己烷/甲醇中，用Pd/C催化与氢反应，转化为扭曲烷(twistane)。可用2,5-二溴苯醌与环己二烯为原料，经多步反应制取。本化合物的合成在有机合成史上具理论意义。
CAS号：
性质：又称五环[4.4.0.02,5.03,8.04,7]癸烷(pentacyclo[4.4.0.02,5.03,8.04,7]decane) 熔点102～104℃(在55～65℃伴随相交)。在己烷/甲醇中，用Pd/C催化与氢反应，转化为扭曲烷(twistane)。可用2,5-二溴苯醌与环己二烯为原料，经多步反应制取。本化合物的合成在有机合成史上具理论意义。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条