quadrivalent derivative

例句：

1. 1. Thequadrivalent derivative is a key componentin the synthesis of this drug.
   四价衍生物是这种药物合成的关键成分。
2. 2. Thequadrivalent derivative has shown great potentialin drug discovery.
   四价衍生物在药物发现中显示出巨大的潜力。
3. 3. The quadrivalent derivative is used to treat various diseases, including cancer.
   四价衍生物用于治疗各种疾病，包括癌症。