硫酰胺

The present invention relates to a process for rapid solution synthesis of a peptide, the process comprising repetitive cycles of steps-: a coupling step, using an excess of an activated carboxylic component to acylate an amino component, a quenching step in which a scavenger is used to remove residual activated carboxylic functions, wherein the scavenger may also be used for deprotection of the growing peptide, one or more aqueous extractions and optionally, a separate deprotection step, followed by one or more aqueous extractions, characterised in that the process comprises at least one step, referred to as step, in which an amine or a thiol comprising a free anion or a latent anion is used as a scavenger of residual activated carboxylic functions.

本发明涉及快速溶液合成肽的方法，该方法包括步骤-的重复循环：偶联步骤，使用过量的活化羧基成分酰化氨基成分，淬灭步骤，在该步骤中使用清除剂除去残余的活化羧基官能团，其中该清除剂还可以用于使生长中的肽去保护，一或多个水抽提和任选地，独立的去保护步骤，之后进行一或多次水抽提，其特征在于该方法包括至少一个步骤，称作步骤，在该步骤中包含自由阴离子或潜阴离子的胺或硫醇用作残余活化羧基官能团的清除剂。

Technical characteristics and existing problems of cyanide-free silver plating technology were summarized through the analysis of cyanide-free silver plating systems of thiosulfate,succinimide,iodide,hydantoin,sulfite and others.

通过对硫代硫酸盐、丁二酰亚胺、碘化物、乙内酰脲、亚硫酸盐以及其它无氰镀银体系的分析，总结了当前无氰镀银工艺的技术特点及存在的问题，并阐述了无氰镀银技术的发展历程和研究现状。

The method applied is in accordance with that of the PRC National Standard for the determination of urease activity in soya bean products.

参考了中华人民共和国国家标准大豆制品中尿素酶活性测定方法，进行了正丁基硫代磷酰三胺活性的测定。

Mainly engaged in sodium azide, barium azide, three phosphorus nitride Friday, phenyl isothiocyanate, 1 - phenyl -5 - mercapto-tetrazole, 4 - dimethylamino-pyridine, 2 - mercapto--5 -- methyl-1,3,4 thiadiazole, N-hydroxy phthalimide, anhydrous betaine and betaine hydrochloride, such as fine chemical raw materials and medicine, pesticide intermediates of the development, production and sales.

主要从事叠氮化钠，叠氮化钡，五氮化三磷，异硫氰酸苯酯，1-苯基-5-巯基四氮唑，4-二甲氨基吡啶，2-巯基-5-甲基-1，3，4噻二唑，N-羟基邻苯二甲酰亚胺，无水甜菜碱及甜菜碱盐酸盐等精细化工原料及医药、农药中间体的开发、生产和销售。

Compostie effects between zinc dialkyldithiophosphate and succinimide in liquid paraffin were investigated, and the protecting films formed on iron surface by either of the two additives alone or their combination were studied with the aid of in situ dynamic temperature variation infrared spectroscopic technique.

研究了二烷基二硫代磷酸锌与丁二酰亚胺在液体石蜡中的复合效应，并对这2种添加剂单独使用或组合使用时在铁表面形成的保护膜进行了原位动态变温红外光谱分析，同时还与其它添加剂组合体系作了对比试验研究，探讨了二者产生复合效应的机理。

Zinc dialkyldithiophosphate succinimide friction reduction and antiwear performances synergistic effect adverse effect

中文关键词：二烷基二硫代磷酸锌，丁二酰亚胺，减摩抗磨性能，协同效应，对抗效应

Ten novel derivatives of 1-phenyl-5-[5-(substituted anilinocarbonylmethylthio)-4-phenyl-1,2,4- triazol-3-ylmethylthio]-tetrazole were synthesized rapidly in high yields by the reaction of N--2-chloryacetanilide (3) with 1-phenyl-5-(5-mercapto-4-phenyl-1,2,4-triazol-3-ylmethylthio)-tetrazo- le (2) under microwave irradiation and phase transfer catalysis conditions.

采用微波和相转移催化法通过1-苯基-5-(4-苯基-1，2，4-三唑-5-巯基-3-甲硫基)四唑(2)与2-氯乙酰芳胺(3)反应高效、快速地合成了10种尚未见文献报道的1-苯基-5-[5--4-苯基-1，2，4-三唑-3-甲硫基]四唑。其结构经IR，1HNMR，13CNMR和元素分析表征。生物活性实验结果表明，该类化合物在较低浓度下部分化合物对小麦芽有很好的促进作用

The paper reports the research concerned with the activity of the inhibitor, the duration of validity, and the kinetics of enzyme-catalyzed reactions of the soil urease inhibitor N - tiophosphoric triamide prepared by Dalian Institute of Light Industry .

本文报道的研究工作是关于大连轻工业学院合成的土壤尿素酶抑制剂正丁基硫代磷酰三胺的最佳研究浓度、有效期及酶促反应动力学。

In a pot experiment with spring wheat and buckwheat as test crops and with thiophosphric triamide and dicyandiamide as test inhibitors, the transformation, regulation and residual effect of 〓N-labelled urea were studied.

采用〓N标记的尿素，以N-丁基硫代磷酰三胺和双氰胺为供试抑制剂，春小麦和荞麦分别为供试作物进行尿素N转化的调节及其残效盆栽试验。

The results showed 3 types of aluminum compound prepared in this paper all had good poison protection effectiveness on such impurities as stannous chloride,lead oxide,sodium hydrogen sulfate,and so on.Moreover,the mechanism of the poison of catalyst was also discussed.

结果表明，合成的3种防中毒剂即防－1、防－2(主要成分为乙酰丙酮合铝)及防－3(主要成分为二乙酰丙酮基异丙氧基铝)对二月桂酸二丁基锡、氯化亚锡、二正丁胺、硫脲、氧化铅及硫酸氢钠等杂质均有较好的防中毒作用；不同防中毒剂对不同杂质的防中毒作用有一定的选择性。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。