Soon, aspirin became synonymous with acetylsalicylic acid.

很快，阿就成了乙酰水杨酸的代名词。

Can't you put me back on 5ASA?

不能给我开点儿乙酰水杨酸吗？

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，生了一种叫做乙酰水杨酸的物质。

The evidence for a protective effect of acetylsalicylic acid (aspirin) on lung cancer risk is inconsistent and limited to case-control studies.

乙酰水杨酸（阿）对肺癌风险的保护作用的证据不一致，且仅限于病例对照研究。

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， 甲基换成其他几个稍微复杂一些的基团，就会得到乙酰水杨酸或阿。

And thus, we can build the compounds we need, whether it be the simple stuff, like acetylsalicylic acid, aspirin, or something more complicated, like alpha-(5,6-dimethylbenzimidazolyl)cobamidcyanide, better known as vitamin B12.

因此，我们可以构建我们需要的化合物， 无论是简单的东西， 乙酰水杨酸、阿，还是更复杂的东西， α-(5, 6-二甲基苯并咪唑基)cobamidcyanide， 也就是众所周知的维生素 B12。