benzothiofuran

例句：

1. 1. This compound is akey intermediate in the synthesis of benzothiazoles.
   这种化合物是合成苯并噻唑的关键中间体。
2. 2. Benzothiazole derivatives have beenfound to exhibit antifungal activity.
   发现苯并噻唑衍生物具有抗真菌活性。
3. 3. The benzothiazolering system is common in many natural productsand pharmaceutical compounds.
   苯并噻唑环系统在许多天然产物和药物化合物中很常见。