... Heterocyclic Compounds 杂环化合物 ; 含一个杂原子的杂环化合物 heterocyclic ring 杂环环 ; 杂环 heterocyclic nucleus 杂环核 ...
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Hydantoin is one of five-membered heterocyclic ring compounds and its derivatives are used widely in the fields of medicine, pesticide, printing, resin and organic synthesis . The synthesis and application of some of hydantoin derivatives were studied in this paper.
乙内酰脲属于一种五元杂环化合物。
参考来源 - 乙内酰脲衍生物的合成与应用研究The C4 contained heterocyclic ring of podophyllotoxin derivatives can get higher antifeedant activity than podophyllotoxin .
2.鬼臼毒素4位引入杂环可以得到比母体化合物活性更高的化合物。
参考来源 - C环不同构型及杂环取代鬼臼类化合物合成及拒食活性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
同义词： heterocycle
以上来源于: WordNet
The attachment of a group to a central metallic agent such as iron with two valences to form a heterocyclic ring.
一种基与中心金属离子(如二价铁离子)结合，形成杂环。
Structute of nitrogen heterocyclic ring quaternary ammonium salt cationic surfactants was identi fied by mass spectrography, nuclear magnetic resonance spectra, infrared spectra and etc.
用质谱法、核磁共振波谱法、红外光谱法等，确定了未知氮杂环季铵盐型阳离子表面活性剂的结构。
An organic coordination (complexing) compound in which the metal ion is bound to atoms of nonmetals, e. g. nitrogen, carbon, or oxygen, to form a heterocyclic ring having coordinate covalent bonds.
一种配位(络合)化合物，其中的金属离子与氮、碳或氧等非金属原子结合生成有配位共价键的杂环。
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