1-nitro-2-(2,7-dimethoxynaphthyl)ethylene

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: 1-nitro-2-(2,7-dimethoxynaphthyl)ethylene
• 英文别名: (E)-2,7-dimethoxy-1-(2-nitrovinyl)naphthalene；2,7-dimethoxy-1-[(E)-2-nitroethenyl]naphthalene
• 化学式: C₁₄H₁₃NO₄
• 分子量: 259.262
• InChiKey: UEGPKYYDLSJMDF-BQYQJAHWSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  64.3
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  1-nitro-2-(2,7-dimethoxynaphthyl)ethylene 在 lithium aluminium tetrahydride 作用下， 以 四氢呋喃 为溶剂， 反应 24.0h， 生成 2-(2,7-dimethoxynaphthyl)ethylamine
  参考文献：
  名称：

  Design and Synthesis of New Naphthalenic Derivatives as Ligands for 2-[125I]Iodomelatonin Binding Sites

  摘要：

  New melatonin-like agents were designed from the frameworks of 2,5-dimethoxyphenethylamine, an important structural moiety for the 5-HT receptor, and (2-methoxynaphthyl)-ethylamine. The compounds were synthesized by classical methods and evaluated in binding assays with chicken brain membranes using 2-[I-125]iodomelatonin as the radioligand. Preliminary studies on the series of N-acyl-disubstituted phenethylamines showed the favorable role of the methoxy group in the ortho position of the side chain on the affinity for the receptor K-i = 8 +/- 0.2 nM) for N-[2-(2-methoxy-5-bromophenyl)ethyl]propionamide (3o). This effect was confirmed in a series of the naphthalene derivatives, a bioisosteric moiety of the indole ring, and several potent ligands for melatonin binding sites were prepared such as N-[2-(2-methoxynaphthyl)ethyl]propionamide (4b) (K-i = 0.67 +/- 0.05 nM) and N-[2-(2,7-dimethoxynaphthyl)ethyl]cyclopropylformamide (K-i = 0.05 +/- 0.004 nM) (4k). Structure-activity relationships are discussed with regard to melatonin and bioisosteric naphthalenic compound 2. The K-i value for 4b was affected to a similar extent to that of melatonin by GTP-gamma-S or Mn2+ in competition experiments, suggesting an agonist profile for this compound.

  DOI：

  10.1021/jm00012a004
• 作为产物：
  描述：

  硝基甲烷 、 2,7-二甲氧基萘-1-甲醛 在 乙酸铵 作用下， 反应 2.0h， 以95%的产率得到1-nitro-2-(2,7-dimethoxynaphthyl)ethylene
  参考文献：
  名称：

  Design and Synthesis of New Naphthalenic Derivatives as Ligands for 2-[125I]Iodomelatonin Binding Sites

  摘要：

  New melatonin-like agents were designed from the frameworks of 2,5-dimethoxyphenethylamine, an important structural moiety for the 5-HT receptor, and (2-methoxynaphthyl)-ethylamine. The compounds were synthesized by classical methods and evaluated in binding assays with chicken brain membranes using 2-[I-125]iodomelatonin as the radioligand. Preliminary studies on the series of N-acyl-disubstituted phenethylamines showed the favorable role of the methoxy group in the ortho position of the side chain on the affinity for the receptor K-i = 8 +/- 0.2 nM) for N-[2-(2-methoxy-5-bromophenyl)ethyl]propionamide (3o). This effect was confirmed in a series of the naphthalene derivatives, a bioisosteric moiety of the indole ring, and several potent ligands for melatonin binding sites were prepared such as N-[2-(2-methoxynaphthyl)ethyl]propionamide (4b) (K-i = 0.67 +/- 0.05 nM) and N-[2-(2,7-dimethoxynaphthyl)ethyl]cyclopropylformamide (K-i = 0.05 +/- 0.004 nM) (4k). Structure-activity relationships are discussed with regard to melatonin and bioisosteric naphthalenic compound 2. The K-i value for 4b was affected to a similar extent to that of melatonin by GTP-gamma-S or Mn2+ in competition experiments, suggesting an agonist profile for this compound.

  DOI：

  10.1021/jm00012a004

文献信息

• Organocatalytic Enantioselective Construction of Conformationally Stable C(sp²)–C(sp³) Atropisomers
  作者：Giulio Bertuzzi、Vasco Corti、Joseph A. Izzo、Sebastijan Ričko、Nicolaj Inunnguaq Jessen、Karl Anker Jørgensen

  DOI：10.1021/jacs.1c12619

  日期：2022.1.19

  observed in natural compounds; however, their enantioselective synthesis remains almost completely unexplored. Herein we disclose a new class of chiral C(sp2)–C(sp3) atropisomers obtained with high levels of stereoselectivity (up to 99% ee) by means of an organocatalytic asymmetric methodology. Multiple molecular motifs could be embedded in this class of C(sp2)–C(sp3) atropisomers, showing a broad and general

  非联芳基阻转异构体是由具有至少一个壬芳烃部分的立体轴定义的分子。其中，在天然化合物中观察到具有构象稳定的 C(sp 2 )-C(sp 3 ) 立体轴的支架。然而，它们的对映选择性合成仍然几乎完全未被探索。在此，我们公开了通过有机催化不对称方法获得的具有高立体选择性（高达 99% ee）的新型手性 C(sp 2 )–C(sp 3 ) 阻转异构体。此类 C(sp 2 )–C(sp 3 ) 中可嵌入多个分子基序) 阻转异构体，显示了广泛而通用的协议。实验数据有力地证明了所得化合物中 C(sp 2 )–C(sp 3 ) 立体轴的构象稳定性（高达t 1/2 25  ° C >1000 y），并显示了对这种罕见立体异构体的动力学控制元素。这与密度泛函理论计算相结合，表明观察到的立体选择性源于建立中间体平衡的 Curtin-Hammett 情景。此外，实验研究为中心到轴向手性转换的工作原理提供了证据。
• Design and Synthesis of New Naphthalenic Derivatives as Ligands for 2-[125I]Iodomelatonin Binding Sites
  作者：Michel Langlois、Beatrice Bremont、Shuren Shen、Annie Poncet、Jean Andrieux、Sames Sicsic、Isabelle Serraz、Monique Mathe-Allainmat、Pierre Renard、Philippe Delagrange

  DOI：10.1021/jm00012a004

  日期：1995.6

  New melatonin-like agents were designed from the frameworks of 2,5-dimethoxyphenethylamine, an important structural moiety for the 5-HT receptor, and (2-methoxynaphthyl)-ethylamine. The compounds were synthesized by classical methods and evaluated in binding assays with chicken brain membranes using 2-[I-125]iodomelatonin as the radioligand. Preliminary studies on the series of N-acyl-disubstituted phenethylamines showed the favorable role of the methoxy group in the ortho position of the side chain on the affinity for the receptor K-i = 8 +/- 0.2 nM) for N-[2-(2-methoxy-5-bromophenyl)ethyl]propionamide (3o). This effect was confirmed in a series of the naphthalene derivatives, a bioisosteric moiety of the indole ring, and several potent ligands for melatonin binding sites were prepared such as N-[2-(2-methoxynaphthyl)ethyl]propionamide (4b) (K-i = 0.67 +/- 0.05 nM) and N-[2-(2,7-dimethoxynaphthyl)ethyl]cyclopropylformamide (K-i = 0.05 +/- 0.004 nM) (4k). Structure-activity relationships are discussed with regard to melatonin and bioisosteric naphthalenic compound 2. The K-i value for 4b was affected to a similar extent to that of melatonin by GTP-gamma-S or Mn2+ in competition experiments, suggesting an agonist profile for this compound.

表征谱图