X-ray diffraction studies of 5-functionalized substituted 1,2,3,4-tetrahydropyrimidin-2-ones(thiones): I. Molecular structures of 5-acetyl-4-ethyl-6-methyl-1,2,3,4-tetrahydropyrimidine-2-thione, 5-acetyl-6-methyl-4-(4-methylphenyl)-1,2,3,4-tetrahydropyrimidine-2-thione, and 5-acetyl-4-(4-methoxyphenyl)-6-methyl-1,2,3,4-tetrahydropyrimidin-2-one

被引：0
|
作者：
G. V. Gurskaya
V. E. Zavodnik
A. D. Shutalev
机构：
[1] Russian Academy of Sciences,Éngelhardt Institute of Molecular Biology
[2] State Scientific Center,Karpov Research Institute of Physical Chemistry
[3] Lomonosov State Academy of Fine Chemical Technology,undefined
来源：
Crystallography Reports | 2003年 / 48卷
关键词：
Molecular Structure; Diffraction Study; Thiones; Conformational Feature; Tetrahydropyrimidine;
D O I：
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学科分类号：
摘要：
The structures of three 5-acetyl-1,2,3,4-tetrahydropyrimidin-2-ones(thiones), namely, 5-acetyl-4-ethyl-6-methyl-1,2,3,4-tetrahydropyrimidine-2-thione, 5-acetyl-6-methyl-4-(4-methylphenyl)-1,2,3,4-tetrahy-dropyrimidine-2-thione, and 5-acetyl-4-(4-methoxyphenyl)-6-methyl-1,2,3,4-tetrahydropyrimidin-2-one, which are potential medicinals, are studied by X-ray diffraction. The conformational features of the molecules studied are analyzed. For these compounds, the dependence of the conformation of the tetrahydropyrimidine ring on the orientation of the substituent at the C(4) atom with respect to the heterocycle is found.
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页码：92 / 97
页数：5
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