氨基化

The clean synthesis of 1,6-dicarbamate hexane from dimethyl carbonate and 1,6-diamine hexane is studied.

对由1，6-己二胺和碳酸二甲酸合成1，6-六亚甲基二氨基甲酸甲酯的洁净化工艺过程进行了初步研究。

Aminoglycosides suppress termination at nonsense codons and result in functional improvement in a cystic fibrosis bronchial epithelial cell line, in muscle cells from mdx mice and in fibroblasts from individuals with Hurler syndrome.

氨基糖苷类物质可以通过抑制无意义密码子的终止作用，改善囊性纤维化的支气管上皮细胞、患肌营养不良的肌细胞和Hurler综合征病人的成纤维细胞的功能。

The new compound,2- oxo-propionic acid p-carboxylphenyl hydrazone,was synthesized by the condensation reaction of 2- oxo-propionic acid and p-carboxylphenyl hydrazine which was prepared from p-aminobenzoic acid by diazotization and reduction.

以对氨基苯甲酸为原料，经过重氮化反应和还原反应，合成了对羧基苯肼(2)；2与2-羰基丙酸缩合得到新化合物2-羰基丙酸缩对羧基苯腙，其结构经UV，荧光光谱，1H NMR，13C NMR，IR和元素分析表征。

In search of databases, the deduced products of sanP, sanQ, sanR, sanS, sanT and sanU show highest similarity to those of nikP2, nikQ, nikR, nikS, nikT and nikU of S. tendae respectively. In comparison with the proteins of identified function, it is indicated that sanP encodes a thioesterase, sanQ encodes a cytochrome P450, sanR encodes a uracil phosphoribosyltransferase, sanS encodes a carboxylase, sanT encodes a histidinol-phosphate aminotransferase and sanU encodes a mutase.

在蛋白数据库中比较结果表明，sanP、sanQ、sanR、sanS、sanT和sanU基因编码的蛋白分别和唐德链霉菌的尼可霉素生物合成基因nikP2、nikQ、nikR、nikS、nikT、nikU六个基因编码的蛋白同源性最高；根据和已知功能蛋白的比较，推测sanP基因编码的是硫酯酶，sanQ基因编码的是细胞色素P450，sanR基因编码的是尿嘧啶磷酸核糖转移酶，sanS基因编码的是羧化酶，sanT基因编码的是组氨醇磷酸氨基转移酶，sanU基因编码的是一种变位酶。

OBJECTIVE: To observe the effects of non-enzymatic glycosylation inhibitor-aminoguanidine on apoptosis of cardiac myocyte and cardiac function in diabetic rats.

目的：观察非酶糖化抑制剂氨基胍对糖尿病大鼠心肌细胞凋亡及其心功能的影响。

A new spectrophotometric method for the determination of chromium has been developed. In HCl medium, the chromium oxidizes hydroxylammonium chloride to form nitrite, which produces a pink azo dye when reacting with p-aminobenzene sulfonic acid and α-naphthylamine.

基于铬在稀盐酸介质中氧化盐酸羟胺产生亚硝酸根，而亚硝酸根与对氨基苯磺酸重氮化后可与α-萘胺偶联产生粉红色偶氮染料，提出了分光光度法测定铬的新方法。

According to Griess reaction, diazonium-salts formed from aromatic amines such as sulfonamides etc., react with NaNO_2 in acid medium and may be coupled with α-naphthylamine or diphenylamine to produce red colored compounds.

一按Griess反应芳香族胺类的重氮化鹽，如对氨基苯磺醯胺类药物等，在酸性溶液中皆能与α-萘胺或二苯胺分别偶合成偶氮色素而显紅色，过多之亞硝酸可与氮色素再作用使紅色消失而呈棕黄色。

With the occurrence of H2/Pd-C and ethyl formic ester,the reduction of the nitro group and the formylation of the amino group could be finished in one step.

但是在甲酸乙酯存在下，用H2/Pd-C对Ⅶ的硝基进行还原，得到的Ⅷ中的氨基可当即被甲酰化，使由Ⅶ到Ⅳ的两步反应一步完成。

Meanwhile, when the supported ionic liquid is used in asymmetric dihydroxylation reaction, there was no catalystic activity of osmium catalyst.

离子液体固载于改性后BMMs在不对称双羟基化反应中由于分子筛改性引入的氨基与锇催化剂的配位作用使其失去活性。

In order to study the therapeutic effect of Sodium Hyaluronate injection of articular cavity and taking orally "JIN GU TONG XIAO WAN"(JGTXW, a TCM preparation for osteopathy disease) in the treatment of osteoarthritis of knee, 130 cases of OA were randomly divided into the treated group (66 cases, treated by SH and JGTXW) and control groups(64 cases, treated only by SH); The effect such as local pain, tumidness, joint movement and so on of the two groups in one year were observed and evaluated according to Lysholm criterion.

骨性关节炎是一种常见的老年退行性关节软骨病，随着我国人口的老年化增高，发病亦越来越多，严重影响老年人的生活质量，对膝关节骨性关节炎的治疗方法多，但疗效都均不太理想，不能阻止或延缓疾病的进展，近年来，以透明质酸制剂为代表的氨基糖类黏弹性物质补充疗法，在防治OA的基础研究和临床应用上取得了良好效果，为OA治疗寻找到了新的途径〔1〕。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。