trimethyl pyridine

例句：

1. 1. This compound is a keyintermediate in the synthesis of many pharmaceuticals.
   这种化合物是合成许多药物的关键中间体。
2. 2. Thetrimethyl pyridinewas used as a solvent fororganic reactions.
   三甲基吡啶用作有机反应的溶剂。
3. 3. The chemical properties oftrimethyl pyridine are similar tothose of pyridine.
   三甲基吡啶的化学性质与吡啶相似。