6-((RS)-2-pentyloxy)-9H-purine

• 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: 6-((RS)-2-pentyloxy)-9H-purine
• 英文别名: 6-pentan-2-yloxy-7H-purine
• 化学式: C₁₀H₁₄N₄O
• 分子量: 206.247
• InChiKey: LDXANPCISXLYII-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  15
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  63.7
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2',3'-二脱氧胸苷 、 6-((RS)-2-pentyloxy)-9H-purine 在 PNP and TPase on DE-52 resin 、 potassium phosphate buffer containing 0.004percent potassium azide (buffer A) 作用下， 反应 7.5h， 以61%的产率得到6-<(RS)-2-pentyloxy>-9-<(2R,5S)-tetrahydro-5-(hydroxymethyl)-2-furyl>-9H-purine
  参考文献：
  名称：

  Novel 6-alkoxypurine 2',3'-dideoxynucleosides as inhibitors of the cytopathic effect of the human immunodeficiency virus

  摘要：

  Twenty-one 6-alkoxypurine 2',3'-dideoxynucleosides were enzymatically synthesized with nucleoside phosphorylases purified from E. coli. Eighteen analogs exhibited anti-HIV-1 activity in MT4 cells. Two analogs,6-(hexyloxy)-(17) and 6-(heptyloxy)-(18) purine 2',3'-dideoxynucleoside, were as potent as 2',3'-dideoxyinosine (ddI, didanosine, Videx). Although the antiviral activities of 17 and 18 were equivalent, 18 was more cytotoxic. Analogs containing less than four carbons in the 6-alkoxypurine substituent exhibited weak anti-HIV-1 activity. Analogs containing more than seven carbons in the 6-alkoxypurine substituent were too cytotoxic to be effectively evaluated for antiviral activity. Several 6-alkoxypurine 2',3'-dideoxynucleosides were evaluated for substrate activity with calf intestinal adenosine deaminase (ADA). Increasing the carbon chain length of the 6-alkoxypurine substituent decreased the rate of dealkoxylation. The best substrate in this series was 6-methoxypurine 2',3'-dideoxynucleoside (1); however, the rate of dealkoxylation of 100 muM 1 was 0.17 % of the rate of deamination of 100 muM 2',3'-dideoxyadenosine. Compound 17, the most potent anti-HIV-1 analog, was not a substrate for ADA. EHNA (erythro-9-(2-hydroxy-3-nonyl) adenine), a potent inhibitor of ADA, had little effect on the antiviral activities of 17 and ddI. In contrast, coformycin, a potent inhibitor of both ADA and AMP deaminase, dramatically decreased the antiviral activity of 17, but not the antiviral activity of ddI. Thus, AMP deaminase appeared to be involved in the anabolism of 17. The pharmacokinetic profile of 17, the most promising analog in this series, was determined in the rat. At least seventeen metabolites of 17, including ddI, were detected in plasma samples. This analog also had poor oral bioavailability.

  DOI：

  10.1021/jm00055a009
• 作为产物：
  描述：

  2-戊醇 、 N⁶,N⁶,N⁶-trimethyladeninium chloride 在 sodium hydroxide 作用下， 以 四氢呋喃 为溶剂， 以2.17 g的产率得到6-((RS)-2-pentyloxy)-9H-purine
  参考文献：
  名称：

  Novel 6-alkoxypurine 2',3'-dideoxynucleosides as inhibitors of the cytopathic effect of the human immunodeficiency virus

  摘要：

  Twenty-one 6-alkoxypurine 2',3'-dideoxynucleosides were enzymatically synthesized with nucleoside phosphorylases purified from E. coli. Eighteen analogs exhibited anti-HIV-1 activity in MT4 cells. Two analogs,6-(hexyloxy)-(17) and 6-(heptyloxy)-(18) purine 2',3'-dideoxynucleoside, were as potent as 2',3'-dideoxyinosine (ddI, didanosine, Videx). Although the antiviral activities of 17 and 18 were equivalent, 18 was more cytotoxic. Analogs containing less than four carbons in the 6-alkoxypurine substituent exhibited weak anti-HIV-1 activity. Analogs containing more than seven carbons in the 6-alkoxypurine substituent were too cytotoxic to be effectively evaluated for antiviral activity. Several 6-alkoxypurine 2',3'-dideoxynucleosides were evaluated for substrate activity with calf intestinal adenosine deaminase (ADA). Increasing the carbon chain length of the 6-alkoxypurine substituent decreased the rate of dealkoxylation. The best substrate in this series was 6-methoxypurine 2',3'-dideoxynucleoside (1); however, the rate of dealkoxylation of 100 muM 1 was 0.17 % of the rate of deamination of 100 muM 2',3'-dideoxyadenosine. Compound 17, the most potent anti-HIV-1 analog, was not a substrate for ADA. EHNA (erythro-9-(2-hydroxy-3-nonyl) adenine), a potent inhibitor of ADA, had little effect on the antiviral activities of 17 and ddI. In contrast, coformycin, a potent inhibitor of both ADA and AMP deaminase, dramatically decreased the antiviral activity of 17, but not the antiviral activity of ddI. Thus, AMP deaminase appeared to be involved in the anabolism of 17. The pharmacokinetic profile of 17, the most promising analog in this series, was determined in the rat. At least seventeen metabolites of 17, including ddI, were detected in plasma samples. This analog also had poor oral bioavailability.

  DOI：

  10.1021/jm00055a009

文献信息

• Novel 6-alkoxypurine 2',3'-dideoxynucleosides as inhibitors of the cytopathic effect of the human immunodeficiency virus
  作者：Charlene L. Burns、Marty H. St. Clair、Lloyd W. Frick、Thomas Spector、Devron R. Averett、Michael L. English、Timothy J. Holmes、Thomas A. Krenitsky、George W. Koszalka

  DOI：10.1021/jm00055a009

  日期：1993.2

  Twenty-one 6-alkoxypurine 2',3'-dideoxynucleosides were enzymatically synthesized with nucleoside phosphorylases purified from E. coli. Eighteen analogs exhibited anti-HIV-1 activity in MT4 cells. Two analogs,6-(hexyloxy)-(17) and 6-(heptyloxy)-(18) purine 2',3'-dideoxynucleoside, were as potent as 2',3'-dideoxyinosine (ddI, didanosine, Videx). Although the antiviral activities of 17 and 18 were equivalent, 18 was more cytotoxic. Analogs containing less than four carbons in the 6-alkoxypurine substituent exhibited weak anti-HIV-1 activity. Analogs containing more than seven carbons in the 6-alkoxypurine substituent were too cytotoxic to be effectively evaluated for antiviral activity. Several 6-alkoxypurine 2',3'-dideoxynucleosides were evaluated for substrate activity with calf intestinal adenosine deaminase (ADA). Increasing the carbon chain length of the 6-alkoxypurine substituent decreased the rate of dealkoxylation. The best substrate in this series was 6-methoxypurine 2',3'-dideoxynucleoside (1); however, the rate of dealkoxylation of 100 muM 1 was 0.17 % of the rate of deamination of 100 muM 2',3'-dideoxyadenosine. Compound 17, the most potent anti-HIV-1 analog, was not a substrate for ADA. EHNA (erythro-9-(2-hydroxy-3-nonyl) adenine), a potent inhibitor of ADA, had little effect on the antiviral activities of 17 and ddI. In contrast, coformycin, a potent inhibitor of both ADA and AMP deaminase, dramatically decreased the antiviral activity of 17, but not the antiviral activity of ddI. Thus, AMP deaminase appeared to be involved in the anabolism of 17. The pharmacokinetic profile of 17, the most promising analog in this series, was determined in the rat. At least seventeen metabolites of 17, including ddI, were detected in plasma samples. This analog also had poor oral bioavailability.