9-苄基-6-氯-2-碘嘌呤 | 176515-41-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 咪唑并嘧啶类
• 中文名称: 9-苄基-6-氯-2-碘嘌呤
• 英文名称: 9-benzyl-6-chloro-2-iodo-9H-purine
• 英文别名: 9-benzyl-6-chloro-2-iodopurine
• CAS: 176515-41-6
• 化学式: C₁₂H₈ClIN₄
• 分子量: 370.58
• InChiKey: AHKGTSBDRDNGCM-UHFFFAOYSA-N

物化性质

• 熔点：
  145-146 °C
• 沸点：
  544.8±60.0 °C(Predicted)
• 密度：
  1.92±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  18
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  43.6
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  9-苄基-6-氯-2-碘嘌呤 在 二异丁基氢化铝 、 Glauber's salt 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 反应 2.0h， 以97%的产率得到6-chloro-9-benzyl-7,8-dihydro-2-iodopurine
  参考文献：
  名称：

  Selective Synthesis of 7-Substituted Purines via 7,8-Dihydropurines

  摘要：

  A simple and efficient protocol for the preparation of 7-substituted purines is described. 6- and 2,6-Dihalopurines were N-9-tritylated and then transformed to 7,8-dihydropurines by DIBAL-H. Subsequent N-7-alkylation followed by N-9-trityl deprotection with trifluoroacetic acid was accompanied by spontaneous reoxidation, which led to the 7-substituted purines at 55-88% overall isolated yields.

  DOI：

  10.1021/ol1025525
• 作为产物：
  描述：

  鸟嘌呤 在 palladium on activated charcoal ammonium hydroxide 、 亚硝酸特丁酯 、 二碘甲烷 、 甲酸铵 、 三氯氧磷 作用下， 以 N-甲基吡咯烷酮 、 甲醇 、 乙腈 为溶剂， 生成 9-苄基-6-氯-2-碘嘌呤
  参考文献：
  名称：

  β-Diketo acids with purine nucleobase scaffolds: Novel, selective inhibitors of the strand transfer step of HIV integrase

  摘要：

  The HIV pol gene encodes three viral enzymes that are required for its replication. While drug discovery involving the viral targets, reverse transcriptase and protease, has resulted in useful therapeutic agents, such efforts on HIV integrase have not produced a single FDA-approved drug. In the work focused on the discovery of inhibitors of HIV integrase, we have synthesized new beta-diketo acids with purine nucleobase scaffolds that are potent inhibitors of the strand transfer steps of wild-type HIV-1 integrase. (C) 2006 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2005.12.093

文献信息

• Regiochemistry in Stille couplings of 2,6-dihalopurines
  作者：Geir Langli、Lise-Lotte Gundersen、Frode Rise

  DOI：10.1016/0040-4020(96)00199-8

  日期：1996.4

  The regiochemistry in Stille couplings of 2,6-dihalopurines have been studied. 2,6-Dichloropurines react selectively in the 6-position, and 6-chloro-2-iodopurines and 2-bromo-6-chloropurines in the 2-position.

  已经研究了2，6-二卤代尿烷在Stille偶联中的区域化学。2,6-二氯嘌呤在6-位选择性反应，6-氯-2-碘嘌呤和2-溴-6-氯嘌呤在2-位选择性反应。
• The Suzuki-Miyaura Cross-Coupling Reactionsof 2-, 6- or 8-Halopurines with Boronic Acids Leading to 2-, 6- or 8-Aryl- and -Alkenylpurine Derivatives
  作者：Martina Havelková、Dalimil Dvořak、Michal Hocek

  DOI：10.1055/s-2001-16765

  日期：——

  The Suzuki-Miyaura cross-coupling reactions of 9-benzyl-6-chloropurine, 9- or 3-benzyl-8-bromoadenine and 2,6-dihalopurines with boronic acids gave the corresponding 6-, 8- or 2-aryl- or -alkenylpurines in good yields. Anhydrous conditions in toluene were superior for coupling of electron-rich boronic acids, while aqueous DME was used for electron-poor arylboronic acids as well as for alkenylboronic acids. A good regioselectivity was observed for the coupling of 2,6-dihalopurines: 9-benzyl-2,6-dichloropurine reacted with one equivalent of phenyl boronic acid to give 9-benzyl-2-chloro-6-phenylpurine, while an analogous reaction of 9-benzyl-6-chloro-2-iodopurine gave selectively 9-benzyl-6-chloro-2-phenylpurine.

  9-苄基-6-氯嘌呤、9-或3-苄基-8-溴腺嘌呤及2,6-二卤嘌呤与硼酸进行的铃木-宫浦交叉偶联反应，以良好产率得到了相应的6-、8-或2-芳基或烯基嘌呤衍生物。无水条件下以甲苯为溶剂对于富电子硼酸的偶联反应较为有利，而贫电子芳基硼酸及烯基硼酸则以含水的二甲氧基乙烷(DME)为溶剂进行反应。在2,6-二卤嘌呤的偶联反应中可以观察到良好的区域选择性：9-苄基-2,6-二氯嘌呤与一当量苯硼酸反应得到了9-苄基-2-氯-6-苯基嘌呤，而9-苄基-6-氯-2-碘嘌呤的类似反应则高选择性地得到了9-苄基-6-氯-2-苯基嘌呤。
• Design, synthesis and structure–activity relationships of a series of 9-substituted adenine derivatives as selective phosphodiesterase type-4 inhibitors
  作者：Pierre Raboisson、Claire Lugnier、Christian Muller、Jean-Marie Reimund、Dominique Schultz、Guillaume Pinna、Alain Le Bec、Hélène Basaran、Laurent Desaubry、François Gaudiot、Mohamed Seloum、Jean-Jacques Bourguignon

  DOI：10.1016/s0223-5234(02)01446-0

  日期：2003.2

  Adenine derivatives substituted in position 9 have been demonstrated to have potent cyclic nucleotide phosphodiesterase (PDE) inhibition properties with high selectivity toward PDE-4. Starting from our initial lead compound 9-(2-fluorobenzyl)-N(6)-methyl-2-trifluoromethyladenine (4, NCS613), we designed and synthesized a new series of 9-substituted derivatives for developing structure-activity relationship

  已经证明在9位取代的腺嘌呤衍生物具有有效的环核苷酸磷酸二酯酶（PDE）抑制特性，并且对PDE-4具有高选择性。从我们最初的先导化合物9-（2-氟苄基）-N（6）-甲基-2-三氟甲基腺嘌呤（4，NCS613）开始，我们设计并合成了一系列新的9-取代衍生物，用于开展结构-活性关系研究。这一系列新的衍生物显示出更高的效价和更好的选择性。在腺嘌呤环的三个不同位置上并行完成结构修饰，并得到以下观察结果：（i）引入亲脂性取代基（如三氟甲基），C-2位的正丙基或碘对于PDE-4抑制活性和对其他同工酶的选择性都有利；（ii）用2-甲氧基取代基对N9苄基进行官能化，导致活性更高的化合物；（iii）用其他氨基取代N（6）-甲基氨基部分对活性是有害的。在所有制备的衍生物中，9-（2-甲氧基苄基）-N（6）-甲基-2-三氟甲基腺嘌呤（9r），9-（2-甲氧基苄基）-N（6）-甲基-2-n-丙基腺嘌呤（9s） ），
• Palladium-catalysed Claisen rearrangement of 6-allyloxypurines
  作者：Petr Koukal、Hana Dvořáková、Dalimil Dvořák、Tomáš Tobrman

  DOI：10.2478/s11696-012-0239-y

  日期：2013.1.1

  6-Allyloxypurines readily undergo palladium-catalysed Claisen rearrangement under mild conditions affording N 1-substituted hypoxanthines. In contrast with the previously reported protocol, the Claisen rearrangement can be performed using Pd(PPh3)4 or Pd(dba)2/dppf in dry THF at 60°C. The reaction can accommodate variously substituted allyl fragments to position N 1 of the hypoxanthine skeleton with

  6-烯丙氧基嘌呤在温和的条件下容易经历钯催化的克莱森重排，得到N 1取代的次黄嘌呤。与先前报道的方案相反，可以在60°C的干燥THF中使用Pd（PPh 3）4或Pd（dba）2 / dppf进行克莱森重排。该反应可以高产率地容纳各种取代的烯丙基片段至次黄嘌呤骨架的N 1位。观察到重排期间双键构型的保留。
• Synthesis of 2-Substituted 6-(Hydroxymethyl)purine Bases and Nucleosides
  作者：Peter Šilhár、Radek Pohl、Ivan Votruba、Michal Hocek

  DOI：10.1135/cccc20051669

  日期：——

  A facile and efficient methodology of the synthesis of 6-(hydroxymethyl)purine derivatives (bases and nucleosides) was developed based on Pd-catalyzed cross-coupling reactions of 6-halopurines or N-protected 2-amino-6-halopurines with (benzoyloxymethyl)zinc iodide followed by deprotection. Regioselective hydroxymethylations of 2,6-dihalopurines were also studied and used for the synthesis of 2-chloro-6-(hydroxymethyl)- or 2,6-bis(hydroxymethyl)purines. The 6-(hydroxymethyl)purine ribonucleoside 5f exerted high cytostatic effect and moderate inhibition of adenosine deaminase, while all the other derivatives were much less effective or entirely inactive.

  基于钯催化的交叉偶联反应，开发出一种简便高效的合成6-(羟甲基)嘌呤衍生物（碱基和核苷）的方法。该方法利用6-卤代嘌呤或N-保护的2-氨基-6-卤代嘌呤与（苯甲氧甲基）锌碘化物进行交叉偶联反应，然后进行去保护。还研究了2,6-二卤代嘌呤的区域选择性羟甲基化反应，并用于合成2-氯-6-(羟甲基)或2,6-双(羟甲基)嘌呤。其中6-(羟甲基)嘌呤核苷5f表现出高的细胞静止效应和适度的腺苷脱氨酶抑制作用，而其他衍生物则效果较弱或完全无效。