Purine: Any of a class of heterocyclic compounds with a two-ring structure composed of carbon and nitrogen atoms.
嘌呤：嘌呤是对由碳、氮原子组成的双环结构的杂环化合物的统称。
A kind of nitrogen-containing heterocyclic borate was designed and synthesized and the molecular structure of the target product was determined by FT-IR spectrum.
通过分子设计，合成了含氮杂环硼酸酯，利用红外光谱确定了目标产物的分子结构。
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