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对溴乙酰苯胺

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The results of clinical assessment showed that levosimendan was safe and effective which could improve the prognosis of the patients and kept normal blood kinetics. By improving the reported synthetic route, levosimendan was synthesized from acetanilide via eight steps of reaction.

本论文探索了左西孟旦的合成路线,对文献报道的合成工艺进行了合理有效的改进,以乙酰苯胺为原料,最终经Friedel-Crafts反应,羰基α-位溴代,丙二酸二乙酯缩合,水解,脱羧,环合,拆分及重氮化加成等八步反应合成了左西孟旦。

A process for preparingp-fluo-2-(2-methyl-3-propionyl)-4-oxy-N,3-diphenyl-phenylbutylamide includes such steps as Friedle-Craft acylating of newly prepared phenylacetyl chloride and fluorobenzene under catalysis of AlCl3 to obtain 4-fluoro-phenylbenzyl ketone, brominating at carbonyl alpha position under catalysis of less AlCl3 to obtain alpha-bromo-4-fluo-phenylbenzyl ketone, and condensing with isobutyryl acetanilide under action of sodium ethoxide.

本发明涉及一种制备对氟-2-(2-甲基-3-氧丙基)-4-氧-N,3-二苯基-苯丁酰胺(1)的方法,其包括以下步骤:新制的苯乙酰氯与氟苯在AlCl3催化下进行Friedle-Craft酰化反应,得到对4-氟-苯基苄基酮(4);化合物(4)在少量AlCl3催化下进行羰基α位溴化,得到α-溴-4-氟-苯基苄基酮(5);然后(3)异丁酰乙酰苯胺在乙醇钠作用下与化合物(5)进行缩合。

Huapai products:pchlorophenol,ochlorophenol,2,4dichlorophenol,2,6dichlorophenol,2,4,5trichlorophenol,2,4,6trichlorophenol,4chloro2benzyl phenol,pbromophenol,2,4,6tribromophenol,1chloro4(1,1dimethyl ethyl) benzene ether,3bromoanisole,mbromofluorobenzene,2tetra hydrofuran,αbromo4chloro acetophenone,αbromo4methoxy acetophenone,4chloro benzophenone,4chloro2methylaniline,n(2hydroxyethyl)ethane diamine; n(2aminoethyl)ethanolamine,2,3dibromopropionyl chloride,4bromo benzene sulphonyl chloride,terephthaloyl chloride,isophthaloyl chloride,nchlorosuccinimide,nbromosuccinimide,pchloranil;tetrachloro1,4benzoquinone,5chloroisatin.

华派公司产品:对氯苯酚,邻氯苯酚,2,4二氯苯酚,2,6二氯苯酚,2,4,5三氯苯酚,2,4,6三氯苯酚,4氯2苄基苯酚,对溴苯酚,2,4,6三溴苯酚,对氯苯基叔丁基醚,间溴苯甲醚,间溴氟苯,α溴甲基四氢呋喃,α溴代4氯苯乙酮,α溴4甲氧基苯乙酮,4氯二苯甲酮,4氯2甲基苯胺,N(2羟乙基)乙二胺, 2,3二溴丙酰氯,对溴苯磺酰氯,对苯二甲酰氯,间苯二甲酰氯,N氯代丁二酰亚胺,N溴代丁二酰亚胺,四氯苯醌,5氯靛红。

推荐网络例句

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

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。