pyrazinyl

例句：

1. 1. The compound contains a pyrazinyl group that reacts with the enzyme.
   该化合物含有一个吡唑啉基，能与酶反应。
2. 2.The drug is designed to inhibit the action of this enzyme.
   这种药物被设计来抑制这种酶的作用。
3. 3. The researcher discovered a new method for synthesizing pyrazinyl compounds.
   研究者发现了一种合成吡唑啉基化合物的新方法。