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- heterocyclic spirans 杂环螺烷
- heterocyclic spiran 杂环螺烷
- An atom other than carbon in the structure of a heterocyclic compound. 杂环原子杂环化合物结构中的除了碳之外的原子
- And the other in Linhai,Zhejiang will mainly develop heterocyclic chemicals. 另一个设在浙江临海，以杂环化学品研发和产品工业化开发为主。
- Robert C. Elderfield. Heterocyclic Compounds [M]. 1952.Volume 4. 502-503. 花文廷.;杂环化合物[M]
- A series of researches indicated: direct linkage of heterocyclic to thio-ace... 一系列的研究说明:刚性杂环直接连硫乙酸是搭建新型材料可行的方法。
- Eblaj rezultoj: Iuj kazoj povas kauzi shokon, spiran malfacilon, ech mortas en 24 horoj. （可能的结果：有些病例会引起休克，呼吸困难，甚至24小时之内死亡。
- The chemical behaviour of heterocyclic compounds is governed by the same factors that govern all chemical behaviour. 杂环化合物的各种反应与其它化学反应一样，均为相同的因素所制约。
- We have, therefore, in both of the examples above, heterocyclic compounds with "built-in" or latent functionality. 上述两例中的杂环化合物，都具有“固有的”或潜在的官能基。
- Many constituents are mutagens and carcinogenic such as alkenes, nitrosamines, polynuclear aromatic and heterocyclic hydrocarbons, amines . 烟草的很多成分都会引起有机体突变以及致癌;如烯烃化合物;亚硝胺;多核芳香烃以及多环碳氢化合物和铵.
- 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。
- Azole:a class of organic compounds having a five-membered heterocyclic ring with two double bonds. 氮杂茂:一种由五种杂环元素,两组粘合剂组成的有机化合物。
- A class of organic compounds having a five-membered heterocyclic ring with two double bonds. 氮杂茂一种由五种杂环元素，两组粘合剂组成的有机化合物。
- We have, therefore, in both of the examples above, heterocyclic compounds with " built-in " or latent functionality. 上述两例中的杂环化合物，都具有“固有的”或潜在的官能基。
- The structure-activity relationships of heterocyclic hypotensor and ramification are discussed in this paper. 文章从结构与活性的角度分析了近年来国内外杂环类抗高血压药及其衍生物的构效关系。
- This paper describes heterocyclic triazene group reagents having been reported in the past few years. 对近年报道的杂环三氮烯类试剂进行了综述。
- "Heme, a complex heterocyclic compound, is an organic molecule derived from porphyrin with an iron atom at the centre. 血红素（一种复杂的杂环化合物）是来自中心含铁原子的的一种有机分子。
- Abstract Heterocyclic compounds generally possess important biological and chemical activities. 摘 要 杂环化合物一般都具有重要的生理活性。
- The resonance energy of aromatic heterocyclic compomds is an importrtemt parameter in studying their properties. 共振能是研究芳杂环化合物性质的重要参数。
- Any of a class of heterocyclic compounds based on the parent structure, uric acid, and used in medicine. 任何一种以母体结构和尿酸为基础的杂环化合物，用于医药方面。
