methods one compound was synthesized by using caffeic acid as raw materials through the reaction of acylation, esterification, hydrolysis, and so on.

方法以咖啡酸为起始原料，经过酰化、酯化、水解等反应进行合成。

objective to determine caffeic acid in pugongying granules by hplc.

目的用高效液相色谱法测定蒲公英颗粒中咖啡酸的含量。

objective:to investigate the effects of caffeic acid ge on telomerase activity and apoptosis on h22 cancer cells in mice.

目的：探讨咖啡酸锗对小鼠肝癌h22端粒酶活性及细胞凋亡的影响。

objective:to observe the inhibitory effect of germanium caffeic acid on the tumor u14.

目的：观察咖啡酸锗对小鼠子宫颈癌14号（u14）的作用。

the caffeic acid content in roots at different growth stages changed a little, the caffeic acid content in stems, leaves and flowers stage got to the highest at the fruit maturity.

咖啡酸含量在不同生长时期根中变化较小，茎、叶和花中的咖啡酸含量均在果实成熟期达到最高。

to study the affection of extraction conditions on contents of chlorogenic acid and caffeic acid in leaves of smallanthus sonchifolius.

以绿原酸和咖啡酸作为主要指标考察提取条件对亚贡叶中化学成分变化的影响。

synthesis methods for natural anticancer drug caffeic acid phenylethyl ester were reviewed and their advantages and disadvantages were described with 55 references.

介绍了天然抗癌药咖啡酸苯乙醇酯的各种化学合成方法，并评价了其优缺点。参攷文献55篇。

「coffee is often vilified but the caffeic acid it contains is a great way to instantly increase alertness and blood pressure, 」 says collins.

「咖啡经常被人误解，但是咖啡里包含的咖啡酸是立即提升机敏性和血压的绝佳方式，」柯林斯说。

caffeic acid phenethyl ester with anti-cancer activity has attracted considerable attention.

咖啡酸苯乙酯是近年来新药研发的热点化合物，其抗肿瘤活性备受关注。

in order to investigate the charge transfer protection mechanism on dna and itselectrophilic nucleotide-dtmp, caffeic acid (dhpaa) and methyl caffeate (mdhpa)protectors have been studied in detail.

为了探讨电荷转移机理，详细研究了咖啡酸（dhpaa）及其甲酯（mdhpa）类保护剂的保护效应。

but the polymerization and ra of chlorogenic acid and caffeic acid basically had no changes.

绿原酸和咖啡酸的聚合度和涩度则基本上没有太大的变化。

introduce the advance in the research of caffeic acid phenethyl ester (cape) in recent years.

介绍蜂胶中咖啡酸苯乙酯（cape）的最近研究进展；

it was proved that chlorogenic acid and caffeic acid were the main substrates in the process of enzymatic oxidation which ran the reaction of polymerization.

说明在酶促氧化过程中，绿原酸和咖啡酸是主要进行聚合反应的底物。

objective: to approach the effect of caffeic acid germanium to h22 hepatoma mouse and the mechanism of inducing cell apoptosis.

目的：探讨咖啡酸锗对h22肝癌小鼠的体内抗肿瘤作用及其诱导细胞凋亡的机制。

aim to synthesize a series of new caffeic acid derivatives and test their hiv-1 integrase inhibitory activities.

目的合成新型咖啡酸衍生物并测定其抑制hiv1整合酶活性。

the concentration of caffeic acid in herba taraxaci was determined by hplc.

用hplc测定蒲公英中咖啡酸的含量。

methyl ester of caffeic acid and 3, 4-diacetyl-caffeic acid can cross the bbb and can thus be used as brain targets.

咖啡酸甲酯和3，4-二乙酰基咖啡酸能突破血脑屏障具有脑靶向性特点。

objective to determine the content of caffeic acid and chlorogenic acid in taraxacum from different habitats.

目的：测定不同产地蒲公英中咖啡酸和绿原酸含量。

methods: herba violae and caffeic acid were identified by tlc.

方法：用t lc对处方中的咖啡酸、 紫花地丁进行定性鑒别。

under the condition of enzymatic oxidation, it was studied by the experiment of oxidative polymerization of catechin, epicatechin, chlorogenic acid and caffeic acid in the cider model system.

在酶促氧化条件下，对模拟苹果酒体系中，儿茶素、表儿茶素、绿原酸和咖啡酸这四种单酚进行氧化聚合反应实验。