3,7-Dimethyl-1-(7-oxooctyl)purine-2,6-dione | 99695-16-6

• 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: 3,7-Dimethyl-1-(7-oxooctyl)purine-2,6-dione
• CAS: 99695-16-6
• 化学式: C₁₅H₂₂N₄O₃
• 分子量: 306.365
• InChiKey: PNPXJOXLISKUSM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  22
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  75.5
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  3,7-Dimethyl-1-(7-oxooctyl)purine-2,6-dione 在 sodium hydroxide 作用下， 以 乙醚 为溶剂， 反应 1.0h， 生成 3-Methyl-5-methylamino-3H-imidazole-4-carboxylic acid (7-oxo-octyl)-amide; compound with picric acid
  参考文献：
  名称：

  Studies on xanthine derivatives. II. Synthesis of 1,2,3,7-tetrahydro-6H-purin-6-ones from xanthine hydrolyzates.

  摘要：

  在乙醇氢氯酸存在下，咖啡啶同系物（2a和2b）发生分子内环化，生成含有1,2,3,7-四氢-6H-嘌呤-6-酮环系的9-氧代-1H-吡咯并[1,2-α]嘌呤（4a）和11-氧代-1H-氮杂庚英并[1,2-α]嘌呤（4b）衍生物。通过咖啡啶与醛（5）或酮（6）在酸催化剂作用下的分子间环化反应合成了含有嘌呤环系的化合物，即2-单取代（7）和2,2-二取代（8）的1,2,3,7-四氢-6H-嘌呤-6-酮。从脲衍生物（3a）衍生得到的4,7,8,9,9a,11-六氢-1,4,9a-三甲基-5,11-二氧代-1H,5H-咪唑并[4,5-f]吡咯并[2,1-b][1,3,5]-氧二唑盐酸盐（9·HCl）的热解产物为4a和1,4-二甲基-4,5-二氢-5,7-二氧代-1H,7H-咪唑并[4,5-d][1,3]恶唑（11）。这些化合物中的许多（4,7和8）显示出对来自兔肠系膜的动脉条在氯化钾诱导的收缩中具有松弛活性，其中71表现出了强效活性。

  DOI：

  10.1248/cpb.34.36
• 作为产物：
  描述：

  6-(2-Methyl-1,3-dioxolan-2-yl)hexyl 4-methylbenzenesulfonate 在 盐酸 、 甲醇 、 potassium carbonate 作用下， 反应 1.0h， 生成 3,7-Dimethyl-1-(7-oxooctyl)purine-2,6-dione
  参考文献：
  名称：

  Potentiation of cADPR-Induced Ca²⁺-Release by Methylxanthine Analogues

  摘要：

  Caffeine and other methylxanthines are known to induce Ca2+-release from intracellular stores via the ryanodine receptor. In the present work, a range of caffeine analogues, in which methyl groups at the 1 and 7 positions were replaced with alkyl chains containing different functional groups (oxo, hydroxyl, propargyl, ester, and acids), were synthesized. These compounds were then screened for their ability to potentiate Ca2+-release induced by cADPR (an endogenous modulator of ryanodine receptors) in sea urchin egg homogenates. Two of the synthesized methylxanthines, 1,3-dimethyl-7-(7-hydroxyoctyl)xanthine (37) and 3-methyl-7-(7-oxooctyl)-1-propargylxanthine (66), were shown to be more potent than caffeine in potentiating cADPR-induced Ca2+-release, while 1,3-dimethyl-7-(5-ethylcarboxypentyl)xanthine (14) was shown to be more efficacious. The development of new methylxanthine analogues may lead to a better understanding of ryanodine receptor function and could possibly provide novel therapeutic agents.

  DOI：

  10.1021/jm980469t

文献信息

• US5801182A
  申请人：——

  公开号：US5801182A

  公开（公告）日：1998-09-01
• US5807861A
  申请人：——

  公开号：US5807861A

  公开（公告）日：1998-09-15
• US6103730A
  申请人：——

  公开号：US6103730A

  公开（公告）日：2000-08-15
• Potentiation of cADPR-Induced Ca²⁺-Release by Methylxanthine Analogues
  作者：Rosaria A. Cavallaro、Luigi Filocamo、Annamaria Galuppi、Antony Galione、Mario Brufani、Armando A. Genazzani

  DOI：10.1021/jm980469t

  日期：1999.7.1

  Caffeine and other methylxanthines are known to induce Ca2+-release from intracellular stores via the ryanodine receptor. In the present work, a range of caffeine analogues, in which methyl groups at the 1 and 7 positions were replaced with alkyl chains containing different functional groups (oxo, hydroxyl, propargyl, ester, and acids), were synthesized. These compounds were then screened for their ability to potentiate Ca2+-release induced by cADPR (an endogenous modulator of ryanodine receptors) in sea urchin egg homogenates. Two of the synthesized methylxanthines, 1,3-dimethyl-7-(7-hydroxyoctyl)xanthine (37) and 3-methyl-7-(7-oxooctyl)-1-propargylxanthine (66), were shown to be more potent than caffeine in potentiating cADPR-induced Ca2+-release, while 1,3-dimethyl-7-(5-ethylcarboxypentyl)xanthine (14) was shown to be more efficacious. The development of new methylxanthine analogues may lead to a better understanding of ryanodine receptor function and could possibly provide novel therapeutic agents.
• Studies on xanthine derivatives. II. Synthesis of 1,2,3,7-tetrahydro-6H-purin-6-ones from xanthine hydrolyzates.
  作者：TSUTOMU OHSAKI、TAKEO KURIKI、TAISEI UEDA、JINSAKU SAKAKIBARA

  DOI：10.1248/cpb.34.36

  日期：——

  Intramolecular cyclization of caffeidine homologues (2a and 2b) in the presence of ethanolic hydrogen chloride gave 9-oxo-1H-pyrrolo[1, 2-α]purine (4a) and 11-oxo-1H-azepino[1, 2-α]purine (4b) derivatives, both containing a 1, 2, 3, 7-tetrahydro-6H-purin-6-one ring system. Purine ring system compounds, 2-monosubstituted (7) and 2, 2, -disubstituted (8) 1, 2, 3, 7-tetrahydro-6H-purin-6-ones, were synthesized by intermolecular cyclization between caffeidine and aldehydes (5) or ketones (6) in the presence of acid catalysts. Pyrolysis of 4, 7, 8, 9, 9a, 11-hexahydro-1, 4, 9a-trimethyl-5, 11-dioxo-1H, 5H-imidazo[4, 5-f]pyrrolo[2, 1-b][1, 3, 5]-oxadiazocine hydrochloride (9·HCl) derived from a urea derivative (3a) afforded 4a and 1, 4-dimethyl-4, 5-dihydro-5, 7-dioxo-1H, 7H-imidazo[4, 5-d][1, 3]oxazine (11). Many of these compounds (4, 7 and 8) showed relaxing activity against KCl-induced contraction of arterial strips isolated from the rabbit mesenterium, and potent activity was observed in the case of 71.

  在乙醇氢氯酸存在下，咖啡啶同系物（2a和2b）发生分子内环化，生成含有1,2,3,7-四氢-6H-嘌呤-6-酮环系的9-氧代-1H-吡咯并[1,2-α]嘌呤（4a）和11-氧代-1H-氮杂庚英并[1,2-α]嘌呤（4b）衍生物。通过咖啡啶与醛（5）或酮（6）在酸催化剂作用下的分子间环化反应合成了含有嘌呤环系的化合物，即2-单取代（7）和2,2-二取代（8）的1,2,3,7-四氢-6H-嘌呤-6-酮。从脲衍生物（3a）衍生得到的4,7,8,9,9a,11-六氢-1,4,9a-三甲基-5,11-二氧代-1H,5H-咪唑并[4,5-f]吡咯并[2,1-b][1,3,5]-氧二唑盐酸盐（9·HCl）的热解产物为4a和1,4-二甲基-4,5-二氢-5,7-二氧代-1H,7H-咪唑并[4,5-d][1,3]恶唑（11）。这些化合物中的许多（4,7和8）显示出对来自兔肠系膜的动脉条在氯化钾诱导的收缩中具有松弛活性，其中71表现出了强效活性。