6-(1H-咪唑-1-基)-7H-嘌呤-2-胺 | 891497-81-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 咪唑并嘧啶类
• 中文名称: 6-(1H-咪唑-1-基)-7H-嘌呤-2-胺
• 中文别名: 2,3-二羟基丙基14-甲基十五烷酸酯
• 英文名称: 2-amino-6-(imidazol-1-yl)purine
• 英文别名: 6-(1H-Imidazol-1-yl)-7H-purin-2-amine；6-imidazol-1-yl-7H-purin-2-amine
• CAS: 891497-81-7
• 化学式: C₈H₇N₇
• 分子量: 201.19
• InChiKey: ZURMPKHWPJZXGN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.5
• 重原子数：
  15
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  98.3
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  6-(1H-咪唑-1-基)-7H-嘌呤-2-胺 、 碘代环戊烷 在 sodium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 以99%的产率得到2-amino-9-cyclopentyl-6-(imidazol-1-yl)purine
  参考文献：
  名称：

  6-（杂芳基）嘌呤的区域特异性N9烷基化：N7被最接近的杂芳基C-H 1屏蔽

  摘要：

  嘌呤烷基化一直困扰着N9（通常需要），N7和其他区域异构体的混合物的形成。我们已经开发了合成6-（偶氮基）嘌呤衍生物的方法，这些衍生物的X射线晶体结构显示了所连接的吡咯-嘌呤环的基本共面构象。这样的环取向将吡咯的CHH定位在嘌呤的N7上方，这导致对N7的保护免受烷基化剂的影响。在DMF中用氢化钠处理6-（2-丁基咪唑-1-基）-2-氯嘌呤（9），然后加入碘乙烷，导致仅形成6-（2-丁基咪唑-1-基）-2-氯-9-乙基嘌呤（10），而2-氯-6-（4,5-二苯基咪唑-1-基）嘌呤的相同处理（11）则产生区域异构混合物12/ 13（N9 / N7，〜5：1）。链接的咪唑和嘌呤环在共面9（丁基侧链从嘌呤环延伸远离和C-H是在N7），但被旋转~57°在11，并且在更笨重唑取代11没有防止形成N7的较小的区域异构体13。现在可以容易地获得各种区域异构纯的9-烷基嘌呤。

  DOI：

  10.1021/jo061759h
• 作为产物：
  描述：

  鸟嘌呤 在 硫酸氢铵 、 碘 、 N,N-二异丙基乙胺 、 三苯基膦 、 六甲基二硅氮烷 、 三氟乙酸 作用下， 以 水 、 甲苯 为溶剂， 反应 76.0h， 生成 6-(1H-咪唑-1-基)-7H-嘌呤-2-胺
  参考文献：
  名称：

  Structure and Synthesis of 6-(Substituted-imidazol-1-yl)purines:  Versatile Substrates for Regiospecific Alkylation and Glycosylation at N9¹

  摘要：

  X-ray crystal structures of several 6-(azolyl) purine base and nucleoside derivatives show essentially coplanar conformations of the purine and appended 6-(azolyl) rings. However, the planes of the purine and imidazole rings are twisted similar to 57 degrees in a 2-chloro-6-(4,5-diphenylimidazol-1-yl) purine nucleoside, and a twist angle of similar to 61 degrees was measured between the planes of the purine and pyrrole rings in the structure of a 6-(2,5-dimethylpyrrol-1-yl) purine nucleoside derivative. Shielding "above" N7 of the purine ring by a proximal C-H on the 6-azolyl moiety is apparent with the coplanar compounds, but this effect is diminished in those without coplanarity. Syntheses of 6-(azolyl)purines from both base and nucleoside starting materials are described. Treatment of 2,6- dichloropurine with imidazole gave 2-chloro-6-(imidazol)-yl)purine. Modified Appel reactions at C6 of trityl-protected hypoxanthine and guanine derivatives followed by detritylation gave 6-(imidazol-1-yl)- and 2-amino-6-(imidazol-1-yl) purines. Imidazole was introduced at C6 of 2',3',5'-tri-O-acetylinosine by a modified Appel reaction, and solvolysis of the glycosyl linkage gave 6-(imidazol-1-yl) purine. Guanosine triacetate was transformed into the protected 2,6-dichloropurine nucleoside, which was subjected to SNAr displacement with imidazoles at C6 followed by glycosyl solvolysis to provide 2-chloro-6-(substituted-imidazol-1-yl) purines. Potential applications of these purine derivatives are outlined.

  DOI：

  10.1021/jo060340o

文献信息

• Methods For Selective N-9 Glycosylation of Purines
  申请人：Robins Morris J.

  公开号：US20080207891A1

  公开（公告）日：2008-08-28

  A process for providing regiospecific and highly stereoselective synthesis of 9-β anomeric purine nucleoside analogs is described. The introduction of the sugar moiety on to 6-(azolyl)-substituted purine bases is performed so that highly stereoselective formation of the β anomers of only the 9 position regioisomers of the purine nucleoside analogs (either D or L enantiomers) is obtained. This regiospecific and stereoselective introduction of the sugar moiety allows the synthesis of nucleoside analogs, and in particular 2′-deoxy, 3′-deoxy, 2′-deoxy-2′-halo-arabino and 2′,3′-dideoxy-2′-halo-threo purine nucleoside analogs, in high yields without formation of the 7-positional regioisomers. Processes for providing novel 6-(azolyl)purines for the regiospecific and highly stereoselective synthesis of 9-β anomeric purine nucleoside analogs are described. The compounds are drugs or intermediates to drugs.

  本文描述了一种提供9-β异构嘌呤核苷类似物的区域特异性和高度立体选择性合成的方法。将糖基引入到6-(咪唑基)-取代的嘌呤碱基上，以获得嘌呤核苷类似物的β异构体的高度立体选择性形成（D或L对映体）。这种区域特异性和立体选择性引入糖基的方法，允许高产率地合成核苷类似物，特别是2'-去氧、3'-去氧、2'-去氧-2'-卤代阿拉伯糖和2',3'-二去氧-2'-卤代-threo嘌呤核苷类似物，而不形成7位异构体。本文还描述了提供新型6-(咪唑基)嘌呤用于区域特异性和高度立体选择性合成9-β异构嘌呤核苷类似物的方法。这些化合物是药物或药物中间体。
• Methods for selective N-9 glycosylation of purines
  申请人：Brigham Young University

  公开号：US07855285B2

  公开（公告）日：2010-12-21

  A process for providing regiospecific and highly stereoselective synthesis of 9-β anomeric purine nucleoside analogs is described. The introduction of the sugar moiety on to 6-(azolyl)-substituted purine bases is performed so that highly stereoselective formation of the β anomers of only the 9 position regioisomers of the purine nucleoside analogs (either D or L enantiomers) is obtained. This regiospecific and stereoselective introduction of the sugar moiety allows the synthesis of nucleoside analogs, and in particular 2′-deoxy, 3′-deoxy, 2′-deoxy-2′-halo-arabino and 2′,3′-dideoxy-2′-halo-threo purine nucleoside analogs, in high yields without formation of the 7-positional regioisomers. Processes for providing novel 6-(azolyl)purines for the regiospecific and highly stereoselective synthesis of 9-β anomeric purine nucleoside analogs are described. The compounds are drugs or intermediates to drugs.

  本文描述了一种提供9-β异构嘌呤核苷类似物的区域特异性和高度立体选择性合成的过程。将糖基引入到6-(唑基)-取代的嘌呤碱基上，以获得仅嘌呤核苷类似物的9位区异构体（D或L对映体）的β异构体的高度立体选择性形成。这种区域特异性和立体选择性的糖基引入允许合成核苷类似物，特别是高产率地合成2'-去氧、3'-去氧、2'-去氧-2'-卤代阿拉伯糖和2',3'-二去氧-2'-卤代-葡萄糖嘌呤核苷类似物，而不形成7位区异构体。本文还描述了提供新型6-(唑基)嘌呤用于区域特异性和高度立体选择性合成9-β异构嘌呤核苷类似物的过程。这些化合物是药物或药物中间体。
• WO2006/138396
  申请人：——

  公开号：——

  公开（公告）日：——
• US7855285B2
  申请人：——

  公开号：US7855285B2

  公开（公告）日：2010-12-21
• Structure and Synthesis of 6-(Substituted-imidazol-1-yl)purines:  Versatile Substrates for Regiospecific Alkylation and Glycosylation at N9¹
  作者：Minghong Zhong、Ireneusz Nowak、John F. Cannon、Morris J. Robins

  DOI：10.1021/jo060340o

  日期：2006.5.1

  X-ray crystal structures of several 6-(azolyl) purine base and nucleoside derivatives show essentially coplanar conformations of the purine and appended 6-(azolyl) rings. However, the planes of the purine and imidazole rings are twisted similar to 57 degrees in a 2-chloro-6-(4,5-diphenylimidazol-1-yl) purine nucleoside, and a twist angle of similar to 61 degrees was measured between the planes of the purine and pyrrole rings in the structure of a 6-(2,5-dimethylpyrrol-1-yl) purine nucleoside derivative. Shielding "above" N7 of the purine ring by a proximal C-H on the 6-azolyl moiety is apparent with the coplanar compounds, but this effect is diminished in those without coplanarity. Syntheses of 6-(azolyl)purines from both base and nucleoside starting materials are described. Treatment of 2,6- dichloropurine with imidazole gave 2-chloro-6-(imidazol)-yl)purine. Modified Appel reactions at C6 of trityl-protected hypoxanthine and guanine derivatives followed by detritylation gave 6-(imidazol-1-yl)- and 2-amino-6-(imidazol-1-yl) purines. Imidazole was introduced at C6 of 2',3',5'-tri-O-acetylinosine by a modified Appel reaction, and solvolysis of the glycosyl linkage gave 6-(imidazol-1-yl) purine. Guanosine triacetate was transformed into the protected 2,6-dichloropurine nucleoside, which was subjected to SNAr displacement with imidazoles at C6 followed by glycosyl solvolysis to provide 2-chloro-6-(substituted-imidazol-1-yl) purines. Potential applications of these purine derivatives are outlined.