查询词典 alkaloids

The constituents of bulb of F. puqiensis were studied. Five steroid alkaloids were isolated. The plane structure and stereoscopic configuration of 4 compounds were elucidated. They are named as puqienine A (FP-33), puqienine B (FP-3), N-demethyl-puqietinone (〓 FP-34) and puqietinone (〓, FP-9). Puqienine A and N-demethyl-puqietinone are new compounds. Puqienine B is as same as FPQ-3 elucidated by Prof.

对F.puqiensis鳞茎化学成份进行了研究，分得5个甾体类生物碱成分，并采用 UV、IR、EI-MS、1D-NMR，HHCOSY、CHCOSY、HMBC和X-RAY等光谱技术和理化常数测定，鉴定出4个化合物的平面结构和立体构型，分别为蒲圻贝母碱甲（puqienineA，FP-33）、蒲圻贝母碱乙（puqienineB，FP-3）、N-去甲蒲贝酮碱（N-demethyl-puqietinone，FP-34）和蒲贝酮碱（puqietinone，FP-9），其中蒲圻贝母碱甲和N-去甲蒲贝酮碱为新化合物。

Lamellarins are a group of marine active pyrrole alkaloids isolated from prosobranch mollusks. So far, over 40 lamellarins have been isolated and identified.

片螺素是一类从前腮亚纲软体动物中分离的具有较强生物活性的海洋吡咯生物碱，迄今已发现40余种。

Seventeen novel pyrrole alkaloids have been synthesized and characterized by IR and 1HNMR.

摘 要：合成了17个新颖的吡咯生物碱，并应用IR和1HNMR谱对所合成的化合物进行了结构表征。

The effects of the total alkaloids isolated from the root of Rauwolfia verticillata from Hainandao on the circulatory and organ plasma and cell volumes were studied by using I~(131)-labelled serum protein and P~(32)-labelled red blood cells.

用I~(131)标記血清蛋白及P~(32)标記紅血球研究海南島蘿芙木根硷对循环及器官血浆及血球容量的影响，发見：正常或腎型高血压大白鼠靜脉注射此硷5毫克/公斤，5分鉀后，循环血浆及血球量均无明显影响。

Methodsresearched the influences of solvent volume, extracting time and solvent ph value on extraction techniques for rauwolfia vomitoris afzel. with the water soluble alkaloids in extracts as index, the optimal condition by l9(34) orthogonal test was studied. the data obtained were analyzed for glm using sas 8.0 software package.

方法采用l9(34)正交实验，研究溶剂用量、提取时间、提取溶剂的ph条件3个因素对催吐萝芙木醇提工艺的影响，以提取物中的水溶性生物碱为指标，采用sas 8.0统计软件进行方差分析，得到最佳提取工艺。

The method is simple and can be used to determine the content of total alkaloids from the root of Rubus alceaefolius Poir.

本方法简便，可用于粗叶悬钩子总生物碱的含量测定。

Of which there are twenty fatty acids, fifteen free amino acids, fourty four volatile oils, three alkaloids, a sucrose and β-sitosterol.

作者从苦参中共分析鉴定出87种成分，其中脂肪酸20种，游离氨基酸15种，挥发油47种，生物碱3种，蔗糖及β-谷甾醇。

Objective: To determine the antibacterial activity of total alkaloids of Sophora Alopecuroides L in vitro.

目的：了解苦豆子总碱的体外抗菌活性。

Objective To study the effect of Alkaloids Sophora Flavescens on the proliferation and cell cycle of vascular smooth muscle cell VSMC）.

目的 探讨苦参总碱对血管平滑肌细胞增殖及细胞周期的影响。

Objective:To establish a method to determine total alkaloids in radix Sophora lavescens by acid dye colorimetry.

目的：建立酸性染料比色法测定苦参药材中总生物碱的含量。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。