METHODS Starting from 2-amino-5-methyl-pyridine, the key intermidiate 5-methyl-2 ( 1H) pyridone was obtained via the way of diazotization, hydrolysis, then it was aromatized with iodobenzene to give pirfenidone.

  • 方法以2-氨基-5-甲基吡啶为起始原料,经重氮化、水解得到关键中间体5-甲基-2(1H)吡啶酮,再与碘苯反应得到吡非尼酮。
  • 来源:互联网摘选更新时间:2026-07-12 09:42:03

  • 重点词汇
  • aromatizedv.使芳香,加香味于( aromatize的过去式和过去分词 );
  • diazotizationn.重氮化作用;
  • fromprep. (表示时间)从…;(表示原因)因为;(表示来源)来自…;(表示分离)与…分离[隔开];
  • wasv. 用来表示某人或某物即主语本身,用来表示某人或某物属于某一群体或有某种性质( be的过去式 );在,存在;不受干扰;
  • methodsn.method的复数:方法;方法( method的名词复数 );方法论;教学法;分类法;
  • itpron.它;他;正好是所需的;事实[情况];
  • withprep. 具有;和;用;有;以;跟;同;带有;使用;和…在一起;借;与…对立;关于;包括;因为;由于;与…方向一致;由…持有;为…工作;虽然;作为…的成员,为…所雇用;具有,有,带有;在…身上,在…身边;由于,因;在…那里,在…看来
  • wayn.道路;方法;方向;某方面;
  • 相关例句
1、

In males, androgen can be aromatized into estrogen by aromatase.

男性体内的雄激素可经芳香化酶作用转化为雌激素。

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2、

Suppose the Detroit Three get their bridging loans.

假设底特律三大汽车制造商获得了过桥贷款。

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3、

Many small and medium-size companies cannot; and even large concerns may need bridging loans.

但很多中小企业无法做到这点;甚至连大企业可能也需要过桥贷款。

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4、

Officials in Moscow were privately sceptical Russia would bail out Cyprus or even provide further bridging loans.

对于由俄罗斯纾困塞浦路斯,或者即使是提供进一步过渡性贷款的构想,俄罗斯官员们私下表示怀疑。

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5、

Her bridegroom is handsome.

她的新郎官很帅气。

《外研社英语同义词辨析词典》

6、

She is lucky to have married a good bridegroom.

她很幸运,嫁了一个如意郎君。

《外研社英语同义词辨析词典》

7、

It can be applied to bridegrooms too.

同时,这一称呼也可用语新郎。

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8、

This year, many bridegrooms are likely to screen the short movies to impress attendees.

今年,许多新郎会放映短片来给参加者留下印象。

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9、

Some people don't know when they're well off.

有些人身在福中不知福。

《牛津高阶英汉双解词典》

10、

Well, you can't have it, so there!

好啦,不给你了,就是这样!

《牛津高阶英汉双解词典》

11、

Her dead sank down, tears welled up in her eyes.

她的头低了下来,眼中涌出了泪水。

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12、

Tears welled up in his baby brown eyes.

他棕色的眼睛里涌出了泪水。

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13、

There is your classic heroic hero, willing and un-willing heroes, group orientated and loner heroes, anti-heroes, tragic heroes, trickster heroes and loner heroes.

有经典的英雄主义英雄,自愿的和不情愿的英雄,团队和单独的英雄,反面英雄,悲剧英雄,骗子英雄和孤独的英雄。

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14、

In 1930's when the theme of revolution plus love was pervasive, Zhou's theme of non-revolution plus non-love or anti-heroes, was another perspective on life and time.

在革命+恋爱流行的火热的30年代,非革命+非恋爱、非英雄主义是周文对时代和生命的另一种观照。

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15、

There are modernism characteristics in the Yu Hua's" brothers", which are embodied in the three aspects of absurdity, anti-heroes and Black Humor.

余华的《兄弟》具有现代主义特质,具体体现在荒诞、反英雄、黑色幽默这三个方面上。

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16、

The former records the streams of consciousness of three anti-heroes, which differs from each other in content and styles, and forms a collage of three dynamic pictures.

动态拼贴主要记述了三个反英雄人物的意识流,它们在内容与文体上相互联系又相互区别,形成三幅动态的画面拼贴在一起。

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17、

Ulysses employs the narrative technique of defamiliarized language in the portrayal of anti-heroes and the revelation of its modernist theme.

《尤利西斯》在叙述中运用陌生化的语言手段刻画反英雄人物,揭示了现代主义主题。

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18、

Moral defects make white imperial heroes degenerate into anti-heroes, while the former morally inferior natives in imperial discourse achieve moral subversion through their actions.

道德上的缺陷使得白人英雄堕落成反英雄,而原本在殖民话语中道德低下的殖民地土著居民却通过自己的行为实现了道德上的颠覆。

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19、

The essential characteristic of those intellectuals is that they are all anti-heroes full of comedy and satirical style in post-modern society.

洛奇笔下的知识分子们,都属于后现代社会中充满喜剧和讽刺色彩的反英雄形象,这也是他们最典型的特征。

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20、

Meanwhile, some stem cells from other organs, bone marrow stem cells for example, pass the liver through blood way and some of them turn into hepatocyte lineage cells and converge into the mainstream at different sites as affluents.

而经由血流到达肝脏的过客性干细胞可不同程度地在不同区段作为该流域的支流汇入干流并转分化为肝系细胞。

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