8-amino-β-NAD+

• 分子结构分类: 有机化合物 - 核苷、核苷酸和类似物 - （5'->5'）-二核苷酸
• 英文名称: 8-amino-β-NAD+
• 英文别名: 8-NH2-NAD(+)；[[(2R,3S,4R,5R)-5-(3-carbamoylpyridin-1-ium-1-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl] [(2R,3S,4R,5R)-5-(6,8-diaminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methyl hydrogen phosphate
• 化学式: C₂₁H₂₉N₈O₁₄P₂
• 分子量: 679.454
• InChiKey: QMKNABUFPMMAST-NAJQWHGHSA-O

计算性质

• 辛醇/水分配系数(LogP)：
  -6.3
• 重原子数：
  45
• 可旋转键数：
  11
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.48
• 拓扑面积：
  344
• 氢给体数：
  9
• 氢受体数：
  19

反应信息

• 作为反应物：
  描述：

  8-amino-β-NAD+ 在 NADase 作用下， 以 aq. buffer 为溶剂， 反应 4.0h， 以40%的产率得到8-Aminoadenosine 5'-diphosphoribose
  参考文献：
  名称：

  Structure–Activity Relationship of Adenosine 5′-diphosphoribose at the Transient Receptor Potential Melastatin 2 (TRPM2) Channel: Rational Design of Antagonists

  摘要：

  Adenosine S'-diphosphoribose (ADPR) activates TRPM2, a Ca2+, Na+, and K+ permeable cation channel. Activation is induced by ADPR binding to the cytosolic C-terminal NudT9-homology domain. To generate the first structure activity relationship, systematically modified ADPR analogues were designed, synthesized, and evaluated as antagonists using patch-clamp experiments in HEK293 cells overexpressing human TRPM2. Compounds with a purine C8 substituent show antagonist activity, and an 8-phenyl substitution (8-Ph-ADPR, 5) is very effective. Modification of the terminal ribose results in a weak antagonist, whereas its removal abolishes activity. An antagonist based upon a hybrid structure, 8-phenyl-2'-deoxy-ADPR (86, IC50 = 3 mu M), is more potent than 8-Ph-ADPR (5). Initial bioisosteric replacement of the pyrophosphate linkage abolishes activity, but replacement of the pyrophosphate and the terminal ribose by a sulfarnate-based group leads to a weak antagonist, a lead to more drug-like analogues. 8-Ph-ADPR (5) inhibits Ca2+ signalling and chemotaxis in human neutrophils, illustrating the potential for pharmacological intervention at TRPM2.

  DOI：

  10.1021/jm401497a
• 作为产物：
  描述：

  8-amino-5'-AMP 在 2,2'-二硫二吡啶 、 magnesium sulfate 、 三苯基膦 、 manganese(ll) chloride 作用下， 以 formamide 、 二甲基亚砜 为溶剂， 反应 52.0h， 生成 8-amino-β-NAD+
  参考文献：
  名称：

  Structure–Activity Relationship of Adenosine 5′-diphosphoribose at the Transient Receptor Potential Melastatin 2 (TRPM2) Channel: Rational Design of Antagonists

  摘要：

  Adenosine S'-diphosphoribose (ADPR) activates TRPM2, a Ca2+, Na+, and K+ permeable cation channel. Activation is induced by ADPR binding to the cytosolic C-terminal NudT9-homology domain. To generate the first structure activity relationship, systematically modified ADPR analogues were designed, synthesized, and evaluated as antagonists using patch-clamp experiments in HEK293 cells overexpressing human TRPM2. Compounds with a purine C8 substituent show antagonist activity, and an 8-phenyl substitution (8-Ph-ADPR, 5) is very effective. Modification of the terminal ribose results in a weak antagonist, whereas its removal abolishes activity. An antagonist based upon a hybrid structure, 8-phenyl-2'-deoxy-ADPR (86, IC50 = 3 mu M), is more potent than 8-Ph-ADPR (5). Initial bioisosteric replacement of the pyrophosphate linkage abolishes activity, but replacement of the pyrophosphate and the terminal ribose by a sulfarnate-based group leads to a weak antagonist, a lead to more drug-like analogues. 8-Ph-ADPR (5) inhibits Ca2+ signalling and chemotaxis in human neutrophils, illustrating the potential for pharmacological intervention at TRPM2.

  DOI：

  10.1021/jm401497a

文献信息

• Chemoenzymatic synthesis of analogues of the second messenger candidate cyclic adenosine 5′-diphosphate ribose
  作者：Gloria A. Ashamu、Antony Galione、Barry V. L. Potter

  DOI：10.1039/c39950001359

  日期：——

  A broad substrate specificity for adenosine 5′-diphosphate ribosyl cyclase is demonstrated by cyclisation of ribose-and purine-modified nicotinamide adenine dinucleotide analogues to mimics of cyclic adenosine 5′-diphosphate ribose, generating a straightforward route for structural modification of this important Ca2+-mobilising nucleotide.

  通过将核糖和嘌呤修饰的烟酰胺腺嘌呤二核苷酸类似物环化为环状腺苷-5'²-二磷酸核糖的模拟物，证明了腺苷-5'²-二磷酸核糖环化酶具有广泛的底物特异性，为这种重要的钙离子动员核苷酸的结构修饰提供了一条直接途径。
• Synthesis of cyclic adenosine 5′-diphosphate ribose analogues: a C2′ endo/syn “southern” ribose conformation underlies activity at the sea urchin cADPR receptor
  作者：Christelle Moreau、Gloria A. Ashamu、Victoria C. Bailey、Antony Galione、Andreas H. Guse、Barry V. L. Potter

  DOI：10.1039/c0ob00396d

  日期：——

  Novel 8-substituted base and sugar-modified analogues of the Ca2+ mobilizing second messenger cyclic adenosine 5′-diphosphate ribose (cADPR) were synthesized using a chemoenzymatic approach and evaluated for activity in sea urchin egg homogenate (SUH) and in Jurkat T-lymphocytes; conformational analysis investigated by 1H NMR spectroscopy revealed that a C2′ endo/syn conformation of the “southern” ribose is crucial for agonist or antagonist activity at the SUH-, but not at the T cell-cADPR receptor.

  采用化学酶法合成了新型 8 取代碱基和糖修饰的 Ca2+ 调动第二信使环腺苷-5â²-二磷酸核糖（cADPR）类似物，并对其在海胆卵匀浆（SUH）和 Jurkat T 淋巴细胞中的活性进行了评估；通过 1H NMR 光谱进行的构象分析发现，C2â² 内/同步构象是 CADPR 在海胆蛋匀浆（SUH）受体（而不是在 T 细胞-CADPR 受体）中发挥激动剂或拮抗剂活性的关键。