MRS5676 | 1377272-76-8

• 分子结构分类: 有机化合物 - 核苷、核苷酸和类似物 - 核苷和核苷酸类似物
• 英文名称: MRS5676
• 英文别名: (1S,2R,3S,4R,5S)-4-(2-((3,4-difluorophenyl)ethynyl)-6-(methylamino)-9H-purin-9-yl)-2,3-dihydroxy-N-methylbicyclo[3.1.0]hexane-1-carboxamide；(1S,2R,3S,4R,5S)-4-[2-[2-(3,4-difluorophenyl)ethynyl]-6-(methylamino)purin-9-yl]-2,3-dihydroxy-N-methylbicyclo[3.1.0]hexane-1-carboxamide
• CAS: 1377272-76-8
• 化学式: C₂₂H₂₀F₂N₆O₃
• 分子量: 454.436
• InChiKey: COVMIZBBIXKPJU-FJHPWZMNSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  33
• 可旋转键数：
  5
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  125
• 氢给体数：
  4
• 氢受体数：
  9

反应信息

• 作为产物：
  描述：

  ethyl (3aR,3bS,4aS,5R,5aS)-5-(2-iodo-6-(methylamino)-9H-purin-9-yl)-2,2-dimethyltetrahydrocyclopropa[3,4]cyclopenta[1,2-d][1,3]dioxole-3b(3aH)-carboxylate 在 bis-triphenylphosphine-palladium(II) chloride 、 copper(l) iodide 、 三乙胺 作用下， 以 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 53.0h， 生成 MRS5676
  参考文献：
  名称：

  Structure-Guided Design of A₃ Adenosine Receptor-Selective Nucleosides: Combination of 2-Arylethynyl and Bicyclo[3.1.0]hexane Substitutions

  摘要：

  (N)-Methanocarba adenosine 5'-methyluronamides containing known A(3) AR (adenosine receptor)enhancing modifications, i.e., 2-(arylethynyl)adenine and N-6-methyl or N-6-(3-substituted-benzyl), were nanomolar full agonists of human (h) A(3)AR and highly selective (K-i similar to 0.6 nM, N-6-methyl 2-(halophenylethynyl) analogues 13 and 14). Combined 2-arylethynyl-N-6-3-chlorobenzyl substitutions preserved A(3)AR affinity/selectivity in the (N)-methanocarba series (e.g., 3,4-difluoro full agonist MRS5698 31, K-i 3 nM, human and mouse A(3)) better than that for ribosides. Polyaromatic 2-ethynyl N-6-3-chlorobenzyl analogues, such as potent linearly extended 2-p-biphenylethynyl MRS5679 34 (K-i hA(3) 3.1 nM; A(1), A(2A), inactive) and fluorescent 1-pyrene adduct MRS5704 35 (K-i hA(3) 68.3 nM), were conformationally rigid; receptor docking identified a large, mainly hydrophobic binding region. The vicinity of receptor-bound C2 groups was probed by homology modeling based on recent X-ray structure of an agonist-bound A(2A)AR, with a predicted helical rearrangement requiring an agonist-specific outward displacement of TM2 resembling opsin. Thus, the X-ray structure of related A(2A)AR is useful in guiding the design of new A(3)AR. agonists.

  DOI：

  10.1021/jm300396n

文献信息

• A3 ADENOSINE RECEPTOR AGONISTS AND ANTAGONISTS
  申请人：Jacobson Kenneth A.

  公开号：US20120184569A1

  公开（公告）日：2012-07-19

  Disclosed are (N)-methanocarba adenine nucleosides of formulas (I)-(V), for example, of formula (V): as highly potent A 3 adenosine receptor agonists, pharmaceutical compositions comprising such nucleosides, and a method of use of these nucleosides, wherein R 1 -R 6 are as defined in the specification. These nucleosides exhibit similar selectivities as agonists of the A 3 versus the A 1 receptor for both human and mouse adenosine receptors, and are contemplated for use in the treatment a number of diseases, for example, inflammation, cardiac ischemia, stroke, asthma, diabetes, and cardiac arrhythmias.
• US8916570B2
  申请人：——

  公开号：US8916570B2

  公开（公告）日：2014-12-23
• Structure-Guided Design of A₃ Adenosine Receptor-Selective Nucleosides: Combination of 2-Arylethynyl and Bicyclo[3.1.0]hexane Substitutions
  作者：Dilip K. Tosh、Francesca Deflorian、Khai Phan、Zhan-Guo Gao、Tina C. Wan、Elizabeth Gizewski、John A. Auchampach、Kenneth A. Jacobson

  DOI：10.1021/jm300396n

  日期：2012.5.24

  (N)-Methanocarba adenosine 5'-methyluronamides containing known A(3) AR (adenosine receptor)enhancing modifications, i.e., 2-(arylethynyl)adenine and N-6-methyl or N-6-(3-substituted-benzyl), were nanomolar full agonists of human (h) A(3)AR and highly selective (K-i similar to 0.6 nM, N-6-methyl 2-(halophenylethynyl) analogues 13 and 14). Combined 2-arylethynyl-N-6-3-chlorobenzyl substitutions preserved A(3)AR affinity/selectivity in the (N)-methanocarba series (e.g., 3,4-difluoro full agonist MRS5698 31, K-i 3 nM, human and mouse A(3)) better than that for ribosides. Polyaromatic 2-ethynyl N-6-3-chlorobenzyl analogues, such as potent linearly extended 2-p-biphenylethynyl MRS5679 34 (K-i hA(3) 3.1 nM; A(1), A(2A), inactive) and fluorescent 1-pyrene adduct MRS5704 35 (K-i hA(3) 68.3 nM), were conformationally rigid; receptor docking identified a large, mainly hydrophobic binding region. The vicinity of receptor-bound C2 groups was probed by homology modeling based on recent X-ray structure of an agonist-bound A(2A)AR, with a predicted helical rearrangement requiring an agonist-specific outward displacement of TM2 resembling opsin. Thus, the X-ray structure of related A(2A)AR is useful in guiding the design of new A(3)AR. agonists.