6,7-dihydroxy-1-(3-hydroxyphenyl)-1,2,3,4-tetrahydroisoquinoline

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 四氢异喹啉
• 英文名称: 6,7-dihydroxy-1-(3-hydroxyphenyl)-1,2,3,4-tetrahydroisoquinoline
• 英文别名: 1,2,3,4-Tetrahydroisoquinolin-6,7-diol, 1-[3-hydroxyphenyl]-；1-(3-hydroxyphenyl)-1,2,3,4-tetrahydroisoquinoline-6,7-diol
• 化学式: C₁₅H₁₅NO₃
• 分子量: 257.289
• InChiKey: APWWKKZTCNEBMI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2
• 重原子数：
  19
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  72.7
• 氢给体数：
  4
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  盐酸多巴胺 、 间羟基苯甲醛 在 potassium phosphate 作用下， 以 乙腈 为溶剂， 反应 12.0h， 以80%的产率得到6,7-dihydroxy-1-(3-hydroxyphenyl)-1,2,3,4-tetrahydroisoquinoline
  参考文献：
  名称：

  磷酸介导的四氢异喹啉生物碱的仿生合成。

  摘要：

  已经实现了在磷酸盐缓冲液中一锅法合成四氢异喹啉生物碱，并提出了反应机理。利用温和的反应条件可容易地得到一系列的异喹啉，包括降冰片碱。

  DOI：

  10.1039/c0cc05282e

文献信息

• The Catalytic Potential of<i>Coptis japonica</i>NCS2 Revealed - Development and Utilisation of a Fluorescamine-Based Assay
  作者：Thomas Pesnot、Markus C. Gershater、John M. Ward、Helen C. Hailes

  DOI：10.1002/adsc.201200641

  日期：2012.11.12

  The versatility and potential of a norcoclaurine synthase (NCS) from Coptis japonica NCS2 has been investigated, together with the development and application of a novel fluorescence-based high-throughput assay using nearly forty amines/aldehydes. The stereocontrol exerted by CjNCS2 on selected non-natural substrates has been determined, where the tetrahydroisoquinolines (THIAs) were formed as the

  研究了来自黄连NCS2的正月桂氨酸合成酶（NCS）的多功能性和潜力，以及使用近四十种胺/醛的新型荧光高通量测定方法的开发和应用。已经确定了Cj NCS2对选定的非天然底物施加的立体控制，其中天然氢去甲可可碱在> 95％ee中形成了四氢异喹啉（THIAs）作为（1 S）异构体。利用报告的黄藻NCS X射线晶体结构对涉及THIA机制中间体的对接计算，并与Cj结合NCS2筛选结果可进一步了解NCS的作用方式。这些发现表明，除了关键的活性位点残基K122和E110，D141对于酶促转化在机械上也是必不可少的。我们提出的机理进一步支持了NCS对醛底物的超强耐受性，其中醛从酶口袋中伸出。
• Phosphate mediated biomimetic synthesis of tetrahydroisoquinoline alkaloids
  作者：Thomas Pesnot、Markus C. Gershater、John M. Ward、Helen C. Hailes

  DOI：10.1039/c0cc05282e

  日期：——

  A one-pot synthesis of tetrahydroisoquinoline alkaloids in a phosphate buffer has been achieved, and a reaction mechanism proposed. The utilisation of mild reaction conditions readily afforded a range of isoquinolines, including norcoclaurine.

  已经实现了在磷酸盐缓冲液中一锅法合成四氢异喹啉生物碱，并提出了反应机理。利用温和的反应条件可容易地得到一系列的异喹啉，包括降冰片碱。
• Synthesis, Purification, and Selective β₂-AR Agonist and Bronchodilatory Effects of Catecholic Tetrahydroisoquinolines from <i>Portulaca oleracea</i>
  作者：Er-Lan Yang、Bin Sun、Zi-Yi Huang、Jian-Guang Lin、Bo Jiao、Lan Xiang

  DOI：10.1021/acs.jnatprod.9b00418

  日期：2019.11.22

  A green, biomimetic, phosphate-mediated Pictet-Spengler reaction was used in the synthesis of three catecholic tetrahydroisoquinolines, 1, 2, and 12, present in the medicinal plant Portulaca oleracea, as well as their analogues 3-11, 13, and 14, with dopamine hydrochloride and aldehydes as the substrates. AB-8 macroporous resin column chromatography was applied for purification of the products from the one-step high efficacy synthesis. It eliminated the difficulties in the isolation of catecholic tetrahydroisoquinolines from the aqueous reaction system and unreacted dopamine hydrochloride. Activity screening in CHO-K1/G alpha 15 cell models consistently expressing alpha(1B)-, beta(1)-, or beta(2)-adrenergic receptors indicated that 12 and 2, compounds that are present in P. oleracea, possessed the most potent beta(2)-adrenergic receptor agonist activity and 2 was a selective beta(2)-adrenergic receptor agonist at the concentration of 100 mu M. Both 12 and 2 exhibited dose-dependent bronchodilator effects on the histamine-induced contraction of isolated guinea-pig tracheal smooth muscle, with EC50 values of 0.8 and 2.8 mu M, respectively. These findings explain the scientific rationale of P. oleracea use as an antiasthmatic herb in folk medicine and provide the basis for the discovery of novel antiasthma drugs.