2-chroman-3-yl-4,5-dihydro-1H-imidazole | 89197-68-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: 2-chroman-3-yl-4,5-dihydro-1H-imidazole
• 英文别名: 2-(3,4-dihydro-2H-chromen-3-yl)-4,5-dihydro-1H-imidazole
• CAS: 89197-68-2
• 化学式: C₁₂H₁₄N₂O
• 分子量: 202.256
• InChiKey: JKWPDCVONGGPIO-UHFFFAOYSA-N

物化性质

• 沸点：
  405.5±34.0 °C(Predicted)
• 密度：
  1.29±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.9
• 重原子数：
  15
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  33.6
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  2H-色烯-3-甲腈 在 palladium on activated charcoal 盐酸 、 氢气 作用下， 以 乙醚 、 乙醇 、 乙酸乙酯 为溶剂， 70.0 ℃ 、413.69 kPa 条件下， 反应 72.0h， 生成 2-chroman-3-yl-4,5-dihydro-1H-imidazole
  参考文献：
  名称：

  .alpha.-Adrenoceptor reagents. 2. Effects of modification of the 1,4-benzodioxan ring system on .alpha.-adrenoreceptor activity

  摘要：

  Modification of the 1,4-benzodioxan ring present in RX 781094 has not previously been considered. This paper describes a number of analogues of this ring system, including compounds in which one of the oxygen atoms has been replaced by a methylene group and also those in which the ring size has been changed to give, for example, furan and thiophene derivatives. The dihydrobenzofuranylimidazoline compound 7 is the only analogue possessing presynaptic antagonist potency potency and selectivity comparable to that of 1. In view of this result, a number of derivatives was prepared to determine the structure-activity relationships within this series. Many derivatives, as well as the parent compound 7, were found to possess presynaptic alpha 2-adrenoreceptor antagonist and postsynaptic alpha 1-adrenoreceptor partial agonist properties. Two of the selective presynaptic antagonists, 13 and 14 possess greater potency and selectivity than that possessed by 1. The 5-chloro derivative 25 is twice as potent as after oral administration but only about half as potent when given intravenously.

  DOI：

  10.1021/jm00371a003

文献信息

• Imidazoline receptors: Qualitative structure-activity relationships and discovery of tracizoline and benazoline. Two ligands with high affinity and unprecedented selectivity
  作者：Maria Pigini、Pascal Bousquet、Angelo Carotti、Monique Dontenwill、Mario Giannella、Roberta Moriconi、Alessandro Piergentili、Wilma Quaglia、Seyed K. Tayebati、Livio Brasili

  DOI：10.1016/s0968-0896(97)00009-6

  日期：1997.5

  characterize imidazoline (I) receptors have been carried out with non-selective or poorly selective ligands prompted us to undertaken research aimed at developing selective ligand(s). In previous work using, as a starting point, cirazoline I, a potent alpha 1-adrenergic receptor agonist that also binds to I receptors, we showed that removal of the cyclopropyl ring (2) retains high affinity for I2 receptors

  观察到所有表征咪唑啉（I）受体的尝试都是使用非选择性或选择性差的配体进行的，这促使我们进行了旨在开发选择性配体的研究。在以前的研究中，以环丙唑啉I为起点，环丙唑啉I是一种也与I受体结合的有效的α1-肾上腺素能受体激动剂，我们发现环丙基环（2）的去除保留了对I2受体的高亲和力，同时降低了α1-肾上腺素激动剂活性。但是，人们认为这种残留的α1肾上腺素激动剂活性虽然适度，但可能会降低化合物2的效用，我们现在报告我们在这一领域的不断努力。从化合物2开始，我们首先通过等位置换消除了α1-激动剂成分，然后，通过对化合物7的构象限制，成功发现了曲西唑啉（9）和苯并唑啉（12）。这两个新的配体具有高亲和力（分别为pKi值8.74和9.07），并且对alpha 2-（I2 / alpha 2 7,762和18,621）和alpha 1-（I2 / alpha 1 2,344和2,691）肾上腺素能受体具有前
• Synthesis and α-blocking activity of some analogues of idazoxan
  作者：Maria Pigini、Livio Brasili、Anna Cassinelli、Dario Giardinà、Ugo Gulini、Wilma Quaglia、Carlo Melchiorre

  DOI：10.1016/0223-5234(87)90263-7

  日期：1987.7
• .alpha.-Adrenoceptor reagents. 2. Effects of modification of the 1,4-benzodioxan ring system on .alpha.-adrenoreceptor activity
  作者：Christopher B. Chapleo、Peter L. Myers、Richard C. M. Butler、John A. Davis、John C. Doxey、Stanley D. Higgins、Malcolm Myers、Alan G. Roach、Colin F. C. Smith

  DOI：10.1021/jm00371a003

  日期：1984.5

  Modification of the 1,4-benzodioxan ring present in RX 781094 has not previously been considered. This paper describes a number of analogues of this ring system, including compounds in which one of the oxygen atoms has been replaced by a methylene group and also those in which the ring size has been changed to give, for example, furan and thiophene derivatives. The dihydrobenzofuranylimidazoline compound 7 is the only analogue possessing presynaptic antagonist potency potency and selectivity comparable to that of 1. In view of this result, a number of derivatives was prepared to determine the structure-activity relationships within this series. Many derivatives, as well as the parent compound 7, were found to possess presynaptic alpha 2-adrenoreceptor antagonist and postsynaptic alpha 1-adrenoreceptor partial agonist properties. Two of the selective presynaptic antagonists, 13 and 14 possess greater potency and selectivity than that possessed by 1. The 5-chloro derivative 25 is twice as potent as after oral administration but only about half as potent when given intravenously.