苯并咪唑及其衍生物的开发，尤其是二取代化合物越来越受到重视，被认为是一类具有多种生物生理活性的杂环。
The development of the benzimidazole and it's derivatives, especially two replacements of benzimidazole, is regarded as a category with a variety bioactivities of heterocyclic.
根据笔者所提出的螺旋理论，对1,2 -二取代二茂铁及其衍生物的结构与旋光方向间的关系进行了分析。
The relationship between structure and rotatory direction of 1, 2-disubstituted ferrocene and its derivatives is analyzed based on the helix theory proposed by the authors.
新型取代的2,4 -噻唑烷二酮衍生物，其制备方法以及含有它们的药物组合物。
Novel substituted 2, 4-thiazolidine diketone derivatives, method for preparation thereof and pharmaceutical compositions containing the same.
采用PM3和INDO/CI理论方法，系统研究了对称取代反式二苯乙烯衍生物的结构和电子光谱。
The geometry, electronic structures and electronic spectra of trans stilbene derivatives are systematically studied by PM3 and INDO/CI methods.
碳、氮和氧族元素取代对2,1,3 -苯并噻二唑衍生物的电子、光谱、电荷传输性质影响的理论研究。
Carbon, nitrogen, and chalcogen substitution effects on 2, 1, 3-benzothiadiazole derivative: theoretical investigations of electronic, optical, and charge transport properties.
取代酰基- 4 -磷酰基氨基硫脲及其1,3,4 -恶二唑杂环衍生物的合成。
The Synthesis of l-acyl-4-phosphoryl Thiosemicarbazides and Their Heterocyclic Derivatives of 1, 3, 4-oxadiazoles.
利用ZINDO/SOS方法，从理论上研究了对称和不对称取代两种情况下，取代基对二噻吩并噻吩衍生物单双光子吸收性质的影响。
In order to investigate the effect of substituents on the two-photon absorption properties(TPA), the one-and two-photon absorption properties were theoretically studied by using ZINDO/SOS method.
目的建立N，N-二甲基-2-溴苯乙胺取代衍生物分子参数和生物活性的关系。
OBJECTIVE To establish the relationship between biological activities and molecular parameters of N, N-dimethyl-2-bromo-2-phenylethylamine derivatives.
在甲醇和水的混合体系中，通过芳醛，丙二腈和脂肪胺的三组分反应我们顺利得到了一系列多取代的吡啶和1，4-二氢吡啶衍生物。
Polysubstituted pyridines and 1,4-dihydropyridines were prepared in a three-component reaction of aromatic aldehyde, malononitrile and aliphatic amine in a mixed solvent of methanol and water.
在甲醇和水的混合体系中，通过芳醛，丙二腈和脂肪胺的三组分反应我们顺利得到了一系列多取代的吡啶和1，4-二氢吡啶衍生物。
Polysubstituted pyridines and 1,4-dihydropyridines were prepared in a three-component reaction of aromatic aldehyde, malononitrile and aliphatic amine in a mixed solvent of methanol and water.
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