类生物碱类

The hydrolyzation process of aconitum diterpenoid alkaloids was studied, and the reaction type was defined according to its optimized experimental conditions.

阐明了乌头碱类双酯型二萜生物碱水解反应过程，确定水解反应的类型以及最佳水解条件。

Progress on Research of chemical constituents of Ailanthus, especially alkaloids and triterpenes is reviewed.

综述了臭椿属植物化学成分的研究进展，详细总结了主要化学成分生物碱及2000年至今所发现的三萜类化合物的研究进展。

This product not only contains VA, VC, VE, VK, VB1, VB2, flavonoid, and coumarin etc., but also is replenished with hawthorn (containing large amount of malol,malic acid, VB2, VC, carotin, calcium, iron, phosporus, flavone and other nutritive substances and numerous alkaloids, more than twenty kinds of ingredients all together) and apricot, which make it more nutritious and easier to be absorbed by the body.

沙棘精不仅保留了沙棘中的维生素A、C、E、K、B1、B2、黄酮类、香豆素等成分，而且因添加了山楂（大量的熊果酸、苹果酸、维生素B2、维生素C、胡萝卜素、钙、铁、磷、黄酮素等二十多种营养物质和大量的生物碱）、杏，使其营养成分更加丰富并且更容易被人体均衡吸收。

Here we applied many types of cinchona alkaloid derivatives and otherβ-aminoalchohol compounds in IFB reactions and investigated the effects of solvent, temperature and catalyst amount on the enantioselectivities in order to find the proper catalyst and optimize reaction condition.

本文考察了多种金鸡纳生物碱衍生物及其它一些β-氨基醇类化合物在IFB反应中的应用，并研究了催化剂的结构、溶剂效应、温度、催化剂用量及反应底物类型对立体选择性的影响，以筛选适合的催化剂和优化反应条件。

So the ester type cinchona alkaloid derivatives should be the preferable catalysts for the IFB reaction withβ-phenyl substituted bromoketones as substrate.

由此可知，这类以酯键形成的金鸡纳生物碱衍生物适于催化β-苯取代溴乙酰甲酸乙酯为底物的IFB反应。

The autotoxicity is one of the mechanisms and obstacle effects occurred from continuous cropping.

自毒作用是连作障碍的发生机制之一，该作用主要是由有机酸、醛类芳香酸、香豆素、醌类、生物碱和类萜等植物次生代谢产物及其分解产物所引起的。

Results:The leaves of Tatarian Dogwood contained amino acid,polysaccharides,reducing sugar,glycosides,cardiac glycosides,anthraquinones,flavonoids,tannin,volatile oils and chlorophyll.Protein,organic acid,coumarin and alkaloid failed to be detected.

结果：红瑞木叶含有氨基酸、多糖、还原糖、苷类、酚性物、蒽醌、黄酮、鞣质、挥发油、叶绿素等化学成分，未检测出蛋白质、有机酸、香豆素、生物碱、皂苷类成分。

The contents of total flavonoids and triterpene are detected with the weight method.

是我国药典记载的药用甘草[ 1 ]，其主要有效成分是皂甙类、黄酮类、生物碱和多糖类化合物。

The effects of Aloe is related to many components, which include various amino acid, peptide, antioxidation enzyme, mineral elements, vitamines, flavone as rutin, organacid, polysaccharide, alkaloid and hormone and so on.

芦荟的各种功效与其多种营养成份有关，它含有多种氨基酸、多肽、酶、矿物元素、维生素，还含有黄酮类物质等酚性成分、萜类及甾体、有机酸类、糖类及生物碱和激素等。

Current study shows that the objectives of study mainly are flavonoids,quinones,alkaloids and coumarins,in terms of pharmacologies of antitumor,antivirus and antimicrobial,as well as optical and magnetic properties,which will provide valuable conclusions on the multiple structures and properties of natural metal complexes with natural medicines,especially for the application development of new anti-tumour ...

研究对象包括黄酮类化合物、生物碱、香豆素和醌类化合物，性质研究主要在抗菌、抗病毒及抗癌方面以及光学和磁学活性方面。这些研究为开发抗癌新药以及研究天然药物金属配合物结构的多样性和性质的多重性方面提供一些有价值的结论。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。