nine member ring heterocyclic compound
九元杂环化合物
eight member ring heterocyclic compound
八元杂环化合物
seven member ring heterocyclic compounds
七元杂环化合
Study on the Synthesis of Nitric Heterocyclic Ring Compound and Its Derivatives.
含氮六元杂环类化合物合成研究
Synthesis and characterization of novel soluble polyamides containing nitrogen heterocyclic ring
新型含氮杂环可溶性聚芳酰胺的合成及表征
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