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The primary synthetic methods of 4-hydroxycoumarin was reviewed starting from phenol, 2-acetylsalicylic acid, methyl salicylate, and o-hydroxyacetophenone respectively.

概述了4-羟基香豆素的合成方法,重点介绍了苯酚法,乙酰法,甲酯法,邻羟基苯乙酮法。

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The recovered hydrogenate has more impurity, so a new purification method was usedwhichsettl-ed the tail peak problem in finished Doxycycline Hyclate.

采用向盐西环素母液中加5-磺基的方法,母液中回收出氢化物,并确定了最佳配比。

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Mild cases of diarrhea are treated with Bismuth subsalicylate (trade name Pepto-Bismol); extreme cases are treated with fluid and electrolyte replacement while the underlying disease passes.

症状较轻的可用次铋治疗,严重时要补充体液和电解质。

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Approximately 30 compounds have been identified in the aroma of green tea, the major ones being benzyl alcohol, phenylethyl alcohol, a hexenol, linalool, geraniol and methyl salicylate.

约有30种化合物已绿茶的香气中鉴别出来,其中主要的有苯甲醇、苯乙醇、已烯醇、沉香醇、香茅醇和甲基酯。

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glycine max, glycinemia, glycinin, glycinuria, glyciphosphoramide, glyclopyramide, Glyco, glyco-, glycoalkaloid, Glycobacter,

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3G, 401(K), a,

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VOA Special 2016年6月合集

Elwood says many people have small amounts of salicylate in the body.

埃尔伍德表示多数人体内都含有少量

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Scishow 精系列

So, the active ingredient in aspirin is a compound called acetylsalicylic acid.

阿司活性成分是一种叫做乙酰化合物。

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Osmosis-消化

Often anti-inflammatory medications are given, like sulfasalazine or mesalamine.

常用药物有柳氮磺吡啶、氨基等抗炎药物。

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Scishow 精系列

Another common treatment is salicylic acid, which doesn't kill the bacteria, but stops them from replicating.

另一种常用药物是,它不会杀灭细菌,但是能阻止细菌繁殖。

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VOA Special 2016年6月合集

In about 20 percent of patients, researchers have found a genetic mutation that may interact with the chemical.

研究人员发现,20%患者体内产生与这类化学物质有关基因突变。

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Scishow 精系列

Salicylic acid might sound familiar if you've used topical acne treatments, but it wasn't quite modern-day aspirin yet.

如果你使用过局部痤疮治疗方法话,听起来可能很熟悉,但它还不是现代阿司

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Chubbyemu胖鸸鹋

Bismuth subsalicylate is a salicylate, or more colloquially known as aspirin.

铋是一种盐,或者更通俗称呼:阿司

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Scishow 精系列

The result was acetylsalicylic acid, the modern active ingredient in aspirin.

结果就是乙酰,阿司现代活性成分。

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TED-Ed(视频版)

Soon, aspirin became synonymous with acetylsalicylic acid.

很快,阿司就成了乙酰代名词。

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豪斯医生一

Can't you put me back on 5ASA?

不能给我开点儿乙酰吗?

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HSDR1

Can't you put me back on 5ASA? Maybe it'll work this time.

难道你不能让我继续使用5-氨基吗也许这次会起作用 不大可能。

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Reel知识卷轴

Meadowsweet and the willow tree are containing a substance called salicylic acid, it's nature's version of aspirin.

绣线菊和柳树含有一种叫做物质,它是天然版阿司

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TED-Ed(视频版)

In 1853, a French chemist managed to chemically synthesize the compound, creating a substance called acetylsalicylic acid.

1853 年, 一位法国化学家成功地化学合成了这种化合物,产生了一种叫做乙酰物质。

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Scishow 精系列

Chemicals like salicylic acid, for instance, might also activate genes that cause cells to make more collagen, or boost certain repair pathways.

像是一类化学品,可能也能刺激造细胞基因产生更多胶原,或者是促进某些修复活动进行。

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Scishow 精系列

It seems that for them, narciclasine prevents the production of enzymes and other proteins involved in aging, allowing the flowers to last longer.

对于它们来说,似乎可以阻止衰老过程中酶和其它蛋白质产生,让它寿命更长。

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Scishow 精系列

It quickly became the world's best selling drug, in part because people were already used to taking salicylic compounds.

它很快成为世界上最畅销药物,部分原因是人们已经习惯服用化合物。

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Crash Course 综合篇

Now if you swap the methyls out for a couple of other slightly more complicated groups, then you get acetylsalicylic acid, or aspirin.

现在, 如果将甲基换成其他几个稍微复杂一些基团,就会得到乙酰或阿司

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版牛津高中英语(修7)

About 2,500 years ago, the Greek physician Hippocrates, father of all doctors, made a juice from a tree bark containing salicylic acid for the same effect.

大约2500年前,希腊医师希波克拉底,也就是医药之父,用一种含有树皮做成一种汁液以起到相同效果。

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Scishow 精系列

In 1838, an Italian scientist named Raffaele Piria synthesized a stronger form of the active ingredient in willow bark for the first time: salicylic acid.

1838 年,一位名叫拉菲勒·皮里亚意大利科学家首次在柳树皮中合成了一种更强活性成分:

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VOA Standard 2013年5月合集

Aspirin, for example, was derived in the 19th century from salicylic acid, a long-time remedy for pains and fever found in plants like willow and meadowsweet.

比如,阿司是19世纪从提取出来,长期以来这种药物被用来治愈疼痛和发烧,是在像柳树和绣线菊属植物这样植物中提取出来

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glycogen, glycogenase, glycogenesis, glycogenic, glycogenolysis, glycogenosis, glycogenosome, glycogeusia, glycoglyceride, glycohemia,

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3G, 401(K), a,
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