说明:双击或选中下面任意单词,将显示该词的音标、读音、翻译等;选中中文或多个词,将显示翻译。
您的位置:首页 -> 词典 -> 双黄酮
1)  biflavonoids
双黄酮
1.
Study on xanthine oxidase inhibitory activities in vitro of biflavonoids from Selaginella pulvinata;
垫状卷柏中双黄酮抑制黄嘌呤氧化酶的活性研究
2.
Study on biflavonoids from stem bark of Daphne giraldii;
祖师麻中的双黄酮类成分研究
2)  biflavone
双黄酮
1.
Using CH 3OCH 2CH 2OCH 3 as a kind of solvent for extracting biflavones from leaves of ginkgo biloba;
试用乙二醇二甲醚作为溶剂提取银杏叶中双黄酮类成分
2.
Yang, seven compounds were isolated for the first time and identified as chavicol β rutinoside (1), amentoflavone (2),podocarpusflavone A (3), 5,5″,7,7″,4′,4 hexahydroxy (2′,8″) biflavone (4), β sitosterol (5),daucosterol (6) and palmitic acid (7).
经波谱分析和化学方法分别鉴定为:佳味酚β芸香糖苷(1),穗花杉双黄酮(2),罗汗松双黄酮甲(3),5,5″,7,7″,4′,4-六羟基(2′,8″)双黄酮(4),β谷甾醇(5),胡萝卜苷(6)和棕榈酸(7)。
3.
A biflavone was synthesized by the reaction of 6-chlorosyl-hept-6-enoyl chloride with enamines derived from the 4,4'-Diacetylbiphenyl, followed by dehy.
本文采用苯乙酮的烯胺与二元酸二酰氯反应,再经催化脱氢合成了5个未见文献报道的黄酮及其类似物;又用4,4′-二乙酰基联苯的烯胺与二元酸二酰氯反应及脱氢两步反应合成了C_(4′),C_(4′′′)双黄酮,开创了一条简便可行的合成双黄酮的新路线,拓宽了Stork烯胺反应的应用范围,具有很高的理论和潜在的应用价值。
3)  Biflavones
双黄酮
1.
Three Bioactive Biflavones Isolated from Taxodium mucronatum;
墨西哥落羽杉中三个活性双黄酮研究
2.
ive known biflavones,sciadopitysin(Ⅰ), ginkgetin(Ⅲ),isoginkgetin(Ⅴ),I-5 -methoxy bilobetin(Ⅶ)and bilobetin(Ⅷ)were isolated from the fleshy testa of Ginkgo biloba L.
)外种皮的乙酸乙酯提取物中分离得到6个化合物,其中5个经物理常数及光谱(UV、IR、MS、NMR)分析鉴定为金松双黄酮(sciadopitysin)、银杏素(ginkgetin)、异银杏素(isoginkgetin)、I-5'-甲氧基白果素(I-5'methoxybilobetin)及白果素(bilobetin)。
4)  Dihydrof lavanone
双氩黄酮
5)  hinokiflavone
扁柏双黄酮
1.
Results: The average recoveries of amentoflavone, hinokiflavone and ginkgetin were 97.
结果:穗花杉双黄酮、扁柏双黄酮、银杏双黄酮加样回收率分别为97。
6)  Sciadopitysin
金松双黄酮
1.
Determination of Sciadopitysin in Branches and Leaves of Taxus yunnanensis by HPLC
HPLC法测定云南红豆杉枝叶中金松双黄酮的含量
2.
The effective constituent parts were isolated and partly purified by using the serum pharmacochemical method in the previous studies, and the constituents are consisted of diterpenoid and flavones, in which taxol and sciadopitysin are the marker substance.
本实验是以可再生的东北红豆杉枝叶为原料,在血清药物化学方法的指导下分析出以紫杉醇为代表的紫杉烷二萜类和以金松双黄酮为代表的双黄酮类抗肿瘤有效部位群的基础上,对其有效部位群的富集工艺进行了深入研究,并对有效部位群进行了成分分析。
补充资料:白果双黄酮
分子式:
CAS号:

性质:又称白果双黄酮,银杏双黄酮。黄色结晶。熔点347~349℃(分解)。盐酸-镁粉反应呈橙红色,三氯化铁反应呈绿色,浓硫酸中呈黄色(无荧光),氢氧化钠中呈黄色。存在于银杏科植物银杏(Ginkgo biloba L.)的叶、外种皮中,粗榧科植物粗榧(Cephalotaxus harringtonia (C.drupacea var,pedunculataK.Koch))等植物中。本品有扩张血管作用,用于治疗心绞痛。

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