查询词典 triterpene

Oleanane-type triterpene with a carboxyl group at C-14 is present in a limited number of natural resources.

齐墩果烷型三萜与羧基在C - 14 ，是目前在数量有限的天然资源。

Objective: To investigate the effects of novel triterpene（12-oleanene-3β, 6α-diol） from Celastrus hypoleucus on the proliferation and apoptosis of human colorectal cancer cell line RKO.

中文摘要：目的：探讨粉背南蛇藤中新的三萜齐墩果-12-烯-3β，6α-二醇对人结肠癌细胞系RKO细胞的体外增殖抑制作用和诱导凋亡作用。

BACKGROUND ＆ AIM: Betulin is an important triterpene. We investigated the antitumor activity of betulin, extracted from the bark of silver birch.

背景与目的：白桦酯醇是一种重要的三萜类生物活性分子，本文从白桦树皮中提取获得白桦酯醇纯品，然后研究该生物活性分子抑制食管癌细胞的活性。

Betulinic acid, a pentacyclic triterpene, has recently been reported to possess antitumor activity against cultured human melanoma cells.

1995年，人们首次发现了白桦酯酸的抗黑色素瘤活性以及作用的选择性，被称为是很有前景的抗肿瘤候选药物。

Betulin, a naturally occurring triterpene, available in abundance up to 10% dry weight of bark from white birch bark, seems to be an ideal starting material for the synthesis of betulinic acid.During a discovery effort from natural resources, in order to seek new biologically active compounds, reaearch on chemical modifications of valuable precursors have been demonstrated to be an effective path to resolve the water solubility problem and increase bioavailability.

从自然界寻找先导活性化合物，再进行结构修饰，试图提高其活性，降低其毒副作用，并提高其水溶性，是创新药物的一条重要思路，而且在新药研制中也得到了很好的应用并取得了显著的成绩。

Objective: To establish a method for HPLC fingerprint determination of the triterpene acids in Poria cocos.

目的 ：建立茯苓中三萜酸类成分HPLC指纹图谱的测试方法。

Twenty compounds have been isolated and structure-elucidated, ten of which were new compounds including one new skeleton diterpene malloapeltin A, 5 cembrene-type diterpenes, two dolabradane-type diterpenoids, one triterpene ester malloapeltin B and one coumarinolignoid compound 5'-demethyl aquillochin.

其中有10个是新化合物，包括一个新骨架的二萜，五个枯烯类的二萜，两个罗柏烷型的二萜，一个三萜的对苯二甲酸酯和一个香豆素木脂体类化合物。

A new triterpene glycoside from sea cucumber Holothuria leucospilota.

黑乳海参中两个新的四环三萜化合物。

The procedure of thin layer chromatography-spectrophotometry analysis of total triterpene in Lagerstroemia specious L.

采用薄层色谱分离-分光光度法测定大叶紫薇叶中的总三萜含量。

Lucidum can be used in the form of triterpene extracts in alternative/adjuvant therapies or for the development of novel triterpene-based agents for the treatment of cancer.

最后，灵芝可以以三萜提取物的形式作为癌症治疗辅助，或是开发新型三萜制剂来治疗癌症。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。