生物合成

The biological activity of the synthetic peptide is...

此外，还报道了合成肽的生物活性。

In order to find active pesticide leading compounds, thinking about that triazolothiadiazoles had various biological activities, this paper designed and synthesized 11 novel title compounds from 3-substituted-4-amino-5-mercapto-1,2,4-triazoles with heterocyclic carboxylic acid via cyclization in the presence of phosphoryl chloride by the princple of combination of active strucural moieties. The structures of the title compounds were characterized by melting point, IR, 1HNMR and elemental analysis.

为了寻找高活性农药先导化合物，考虑到三唑并噻二唑衍生物具有广泛的生物活性，本文利用活性亚结构拼接原理，将活性基团分别引入1，2，4-均三唑并[3，4-b]-1，3，4-噻二唑杂环的3位和6位，合成了未见文献报道的3，6-二取代均三唑并[3，4-b]-1，3，4-噻二唑类化合物11个，并用IR、1HNMR及元素分析测试技术对其进行了结构表征。

Because of Fe is an essential element in the biosynthetic pathway of tetrapyrroles in pigments, Fe(superscript 3+) fertilizers on the recovery of discolored layer was applied exogenously in the laboratory, and that brought about a pigmental convalescence.

因为Fe是生物体内合成上述4类吡咯类色素所不可缺少的微量元素，所以在实验室内对退色紫菜进行了外源性添加Fe(上标 3+)实验，发现该紫菜中的色素含量有明显提高。

Aim According to the targets of 5-HT transporter and 5-HT2A receptor, a series of N -indolalkyl piperidine derivatives and their analogues were synthesized and tested for their biological activities.

摘要摘 要：目的以5-羟色胺转运体和5-HT2A受体为靶点，设计合成 N -吲哚烷基哌啶类化合物及其类似物，研究它们的体内外生物活性。

The bioligical activities of all complexes were tested by means of modified pyrogallol autoxidation . The results indicates that V-SOD mimics present limited fine biological activities. This work opens up a new path for syntheizing new SOD mimics and studying the relationship between structure and biological activity of the mimics compounds.

利用改进的邻苯三酚自氧化法测定了所合成配合物的生物活性，结果显示钒的模型配合物具有较好的活性，为拓展研究SOD模型化学奠定了基础，开阔了思路。

In chapter one, an overall review is presented at the beginning on the development of separation, activity and synthesis of Aldisin and its related pyrrole alkaloid.

第一章，介绍含吡咯环结构生物碱的生物活性，以及对近年来文献报道的含吡咯环结构生物碱Aldisin及其相关化合物的分离、活性及合成研究进展作了较为全面的综述。

Preparation of pyruvate can be achieved by chemical catalytic synthesis, microbial fermentation and biocatalysis.

丙酮酸的生产方法主要有化学催化合成法、微生物发酵法和生物催化法。

Numerous quinoxaline derivatives have been prepared to get biologically active compounds, and the research continues to synthesize new compounds having unusual skeletons.

许多喹喔啉衍生物被认定具有生物活性，故不断地被研究以合成新的骨架。

We report herein the syntheses and characterization of three ligands:2,3-di-2-pyridylquinoxaline, 2,3-bis(2-pyridyl)-5,6-dimethoxyl-quinoxaline,and 2,3,7,8-tetrakis(2-pyridyl)pyrazino[2,3-g]quinoxaline and their 〓 and 〓complexes.

多吡啶配合物的结构多种多样，具有不寻常的光、电、磁性质和生物活性等，所以它们在非线性光学材料、磁性和超导材料、催化及药物合成方面有良好的潜在应用前景。

Preliminary bioassay indicates that some compounds display herbicidal activity and excellent fungicidal activity to some extent, and among them the compounds 5k and 8f exhibit higher than 90% inhibition effect against Rhizoctonia solani in dosage of 50 mg/L.

初步的生物活性测试结果表明，所合成的化合物均表现出不同程度的除草及杀菌活性，其中化合物5k和8f的活性最好，在50mg/L浓度下对水稻纹枯病菌的抑制率达90%以上。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失