硫酸化作用

The immunoregulation activity of SPG-1 mainly existed in the part of sugar chain, but keeping its molecular structure intact had some effects on its immunoregulation activity; SPG sulphation had reducing effects on the immunoregulation of SPG-1, whereas, after medium and low acetification of SPG, the immunoregulation of SPG was enhanced. Conversely after high acetification, the immunoregulation of SPG-1 decreased, that is, after introducing sulfuric and acetic acid base in SPG-1, its immunoregulation changed. All of these indicated the structure of SPG-1 was closely connected with its immune activity.⑤.

甘薯糖蛋白SPG-1的免疫调节活性主要在其糖链部分，但保持分子结构的完整性对其免疫调节的活性有一定的作用；甘薯糖蛋白硫酸化对甘薯糖蛋白SPG-1的免疫调节有降低作用，而中、低度乙酰化后，可提高甘薯糖蛋白的免疫调节作用，高度乙酰化后则降低其免疫调节作用，即甘薯糖蛋白引入乙酰基和硫酸基团后，其免疫调节活性发生了改变，这些均表明了甘薯糖蛋白的结构与其免疫调节活性有密切的关系。

Objective:To observe the effect of aerosol inhalation of β 2 receptor stimulant combined with anticholinergic in treating asthma attack.

目的 ：观察β2 受体激动剂硫酸特布他林和抗胆碱能药物溴化异丙托品联合雾化吸入治疗哮喘急性发作的作用。

Its bacteriostasis in vitro showed that it could not inhibit the growth of E. coli in vitro.

体外抑菌实验结果表明：硫酸化葡聚糖在体外对大肠杆菌的生长没有抑制作用。

In the medium of H_2SO_4 and catalyzed by potassium bromide, iodate can oxidize and decolorize methyl orange very well.

基于硫酸介质中，碘酸根在溴化钾的催化作用下对甲基橙有较好的氧化褪色作用。

Various inorganic acid, such as ammonium chloride, copper sulfate, aluminum sulfate, mercury chloride, cerium sulfate and cerium chloride, have been evaluated for copper powder, zinc powder, or tin powder-mediated allylation reactions of carbonyl compounds with allyl bromide in aqueous medium.

结果表明：在同样的反应条件下，与铜粉或锌粉作用的此类反应相比，锡粉能更好的作用羰基烯丙基化反应，并且该反应的产率都比较高；在同样的金属促进剂存在下，硫酸亚铈的促进性能是所有无机酸中最好的。 2、研究了二氧化碳促进羰基化合物烯丙基化反应。

Tetrachloroterephthalic acid was prepared by chlorinating terephthalic acid, oleumsolvent and iodine catalyst. Tetrachloroterephthalic acid was acylated by sulphurous oxychloride in the presence of DMF to form tetrachloroterephthaloyl chloride. The acyl chloride product was fluorinated by potassium fluoride and esterified by methanol to synthesize dimethyl tetrafluoroterephthalate. The ester was reduced with potassium borohydride and lithium chloride to give tetrafluoroterephthalyl alcohol. The above product was bromated in the hydrobromic acid to obtain 4-bromomethyl-2,3,5,6-tetrafluoro-benzene methanol. 4-Methyl-2,3,5,-6-tetrafluorobenzene ethanol was obtained by reducing the bromide with magnesium. In the exist of DCC and DMAP, tefluthrin was got by the condensation reaction between 4-methyl-2,3,5,6-tetrafluoro-benzene methanol and-(1RS,3RS)- 3-(2- chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cycolpropanecar-boxylate acid.

对苯二甲酸与氯气在碘存在下以发烟硫酸为溶剂进行氯化制备四氯对苯二甲酸；再以DMF为催化剂与二氯亚砜反应生成四氯对苯二甲酰氯；以氟化钾为氟化剂，环丁砜为溶剂置换氟化，再与甲醇酯化得到四氟对苯二甲酸甲酯；以KBH4-LiCl为还原剂二甲醚为溶剂反应制得四氟对苯二甲基苄醇；以氯苯为溶剂在溴化氢溶液中溴化得到溴化产物；在乙醇溶液中经镁粉还原得到4-甲基-2，3，5，6-四氟苄醇；甲基苄醇与功夫酸在催化剂二环己基碳二亚胺和4-二甲氨基吡啶作用下缩合得到七氟菊酯，总收率达43.6%。

The corresponding thiochromanones were synthesized from β-arylthioethers of propionic acid under microwave irradiation in the presence of polyphosphoric acid. Their structures were confirmed by IR, 1H NMR, MS spectra and elemental analysis.

关于这些化合物合成曾有一些报道：以硫酚及卤代羧酸为原料在回流或超声作用下合成β-芳硫丙酸，芳硫丙酸在浓硫酸或磷酸作用下环化制备硫色满酮[1，2]。

The recent processes in the domestic sulphonation units are introduced which concern heat energy recovery, utilizing SO3 from sulfuric acid unit and replacing ESP with fiber precipitator.

介绍了近年来国内磺化装置在热能回收、采用硫酸装置吸收SO_3气体、用布林克多芯纤维除雾器取代静电除雾器处理磺化尾气诸方面所作的努力和工艺流程，对建设资源节约、环境友好型的新装置及老装置改造有借鉴作用。

In addition, it was also found that the sulfated α-D-1, 3-glucans with higher degree of substitution had suppressive effects on dimethylbene-induced ear shell swell of mice, and possessed antivirus (HSV-1 and Influenza A) activities in vitro, suggesting that the sulfated glycans have potential usages in the release of inflammation of nerve system and the infection of some virus.

另外，还发现，具有较高取代度的硫酸化灵芝多糖对二甲苯诱导的小鼠耳壳肿胀，单纯疱症病毒（HSV-1）对Vero细胞的感染及A型流感病毒对MDCK细胞的感染均有一定的抑制作用，说明硫酸化灵芝多糖对神经系统炎症及病毒感染具有潜在的治疗作用。

The catalyst under high temperature hydrolysis into fatty acids and glycerol, with the metal oxides can happen saponification reaction, Formation of metal soap and glycerin, but also for halide, sulfate, sulfonation, oxidation, hydrogenation, polymerization and pyrolysis reaction.

可在催化剂作用下高温水解成脂肪酸和甘油，与金属氧化物能发生皂化反应，生成金属皂和甘油，还可进行卤化、硫酸化、磺化、氧化、氢化、聚合、热解等反应。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。