水杨酸基

例句：

1. 1. Thecompound has a sulfonamidegroup at the 2-position,which is important for its biological activity.
   该化合物在2位有一个磺酰胺基团，这是其生物活性的关键。
2. 2. Thedrug was synthesized using a water-soluble polymer as the carrier.
   该药物使用一种水溶性聚合物作为载体进行合成。
3. 3. The structure of this compound issimilar to that of salicylicacid, which is commonly used in antipyretic drugs.
   这种化合物的结构与水杨酸相似，后者常用于解热药中。