Synthesis and diuretic activity of N-substituted condensed derivatives of 3-methylxanthine with endocyclic sulfur atom
作者:N. I. Romanenko、I. V. Fedulova、B. A. Priimenko、N. A. Klyuev、T. A. Pereverzeva、B. A. Samura、E. V. Aleksandrova
DOI:10.1007/bf02219704
日期:1996.3
7-chloroalkyl-8bromo-3-methytxanthines (Ia c) [4], and studied some reactions and diuretic activity of the compounds obtained. The pathways of the chemical transformations are illustrated in the scheme below. As is seen from this scheme, boiling dihalide derivatives la c with sodium sulfide in DMFA led to the previously undescribed 8-methyl-5,7-dioxo-2,3,5,6,7,8-hexahydrothiazolo(lla), 9-methyl-6,8-dioxo-3
我们早期的实验 [1 3] 表明含氮杂环化黄嘌呤具有广泛的药理活性。然而,具有环内硫原子的 3-甲基黄嘌呤的缩合衍生物在其药理特性方面几乎没有特征。在这方面,我们在 7-氯烷基-8溴-3-甲基黄嘌呤 (Ia c) [4] 的基础上合成了噻唑并 [3,2-f] 嘌呤 (II ac) 的水合衍生物,并研究了所得化合物的一些反应和利尿活性。化学转化的途径如下图所示。从该方案中可以看出,在 DMFA 中用硫化钠煮沸二卤化物衍生物 la c 产生了先前未描述的 8-methyl-5,7-dioxo-2,3,5,6,7,8-hexahydrothiazolo(lla), 9 -methyl-6,8-dioxo-3,4, 6,7,8,9-六氢-2H1,3-thiazino-(IIb), 和 I 0-methyl-7,9-dioxo-2,3,4,5,7,8,9, l 0-octahydro -l,3-thiazepino-(IIc)