8-Cyclopentyl-1,3-dimethyl-3,7-dihydro-purine-2,6-dithione

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 咪唑并嘧啶类
• 英文名称: 8-Cyclopentyl-1,3-dimethyl-3,7-dihydro-purine-2,6-dithione
• 英文别名: 8-cyclopentyl-1,3-dimethyl-7H-purine-2,6-dithione
• 化学式: C₁₂H₁₆N₄S₂
• 分子量: 280.418
• InChiKey: OZFIHDSOBZIHQU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  18
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.58
• 拓扑面积：
  99.3
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  环戊基甲酰氯 在 吡啶 、 sodium hydroxide 、 tetraphosphorus decasulfide 作用下， 以 1,4-二氧六环 、 乙醇 为溶剂， 反应 11.0h， 生成 8-Cyclopentyl-1,3-dimethyl-3,7-dihydro-purine-2,6-dithione
  参考文献：
  名称：

  Sulfur-containing 1,3-dialkylxanthine derivatives as selective antagonists at A1-adenosine receptors

  摘要：

  Sulfur-containing analogues of 8-substituted xanthines were prepared in an effort to increase selectivity or potency as antagonists at adenosine receptors. Either cyclopentyl or various aryl substituents were utilized at the 8-position, because of the association of these groups with high potency at A1-adenosine receptors. Sulfur was incorporated on the purine ring at positions 2 and/or 6, in the 8-position substituent in the form of 2- or 3-thienyl groups, or via thienyl groups separated from an 8-aryl substituent through an amide-containing chain. The feasibility of using the thienyl group as a prosthetic group for selective iodination via its Hg2+ derivative was explored. Receptor selectivity was determined in binding assays using membrane homogenates from rat cortex [( 3H]-N6-(phenylisopropyl)adenosine as radioligand] or striatum [3H]-5'-(N-ethylcarbamoyl)adenosine as radioligand] for A1- and A2-adenosine receptors, respectively. Generally, 2-thio-8-cycloalkylxanthines were at least as A1 selective as the corresponding oxygen analogue. 2-Thio-8-aryl derivatives tended to be more potent at A2 receptors than the oxygen analogue. 8-[4-[(Carboxy-methyl)oxyl] phenyl]-1,3-dipropyl-2-thioxanthine ethyl ester was greater than 740-fold A1 selective.

  DOI：

  10.1021/jm00128a031

文献信息

• Sulfur-containing 1,3-dialkylxanthine derivatives as selective antagonists at A1-adenosine receptors
  作者：Kenneth A. Jacobson、Leonidas Kiriasis、Suzanne Barone、Barton J. Bradbury、Udai Kammula、Jean Michel Campagne、John W. Daly、John L. Neumeyer、Wolfgang Pfleiderer、Sherrie Secunda

  DOI：10.1021/jm00128a031

  日期：1989.8

  Sulfur-containing analogues of 8-substituted xanthines were prepared in an effort to increase selectivity or potency as antagonists at adenosine receptors. Either cyclopentyl or various aryl substituents were utilized at the 8-position, because of the association of these groups with high potency at A1-adenosine receptors. Sulfur was incorporated on the purine ring at positions 2 and/or 6, in the 8-position substituent in the form of 2- or 3-thienyl groups, or via thienyl groups separated from an 8-aryl substituent through an amide-containing chain. The feasibility of using the thienyl group as a prosthetic group for selective iodination via its Hg2+ derivative was explored. Receptor selectivity was determined in binding assays using membrane homogenates from rat cortex [( 3H]-N6-(phenylisopropyl)adenosine as radioligand] or striatum [3H]-5'-(N-ethylcarbamoyl)adenosine as radioligand] for A1- and A2-adenosine receptors, respectively. Generally, 2-thio-8-cycloalkylxanthines were at least as A1 selective as the corresponding oxygen analogue. 2-Thio-8-aryl derivatives tended to be more potent at A2 receptors than the oxygen analogue. 8-[4-[(Carboxy-methyl)oxyl] phenyl]-1,3-dipropyl-2-thioxanthine ethyl ester was greater than 740-fold A1 selective.