lower derivate

例句：

1. 1. The lower derivate of the compound is a simpler form that retains its original properties.
   该化合物的下位衍生物是更简单的形式，保留了其原有性质。
2. 2. In chemistry, a lower derivate refers to a substance that has been derived from a more complex compound.
   在化学中，下位衍生物是指从更复杂的化合物衍生而来的物质。
3. 3. The lower derivate of the drug was found to have fewer side effects than the original compound.
   该药物的下位衍生物被发现比原始化合物具有更少的副作用。