1-isobutyl-6,7-dimethoxy-3,4-dihydroisoquinoline | 82083-86-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氢异喹啉
• 英文名称: 1-isobutyl-6,7-dimethoxy-3,4-dihydroisoquinoline
• 英文别名: 1-isobutyl-6,7-dimethoxy-3,4-dihydro-isoquinoline；1-Isobutyl-6,7-dimethoxy-3,4-dihydro-isochinolin；6,7-dimethoxy-1-(2-methylpropyl)-3,4-dihydroisoquinoline
• CAS: 82083-86-1
• 化学式: C₁₅H₂₁NO₂
• mdl: MFCD02648399
• 分子量: 247.337
• InChiKey: COAYVFJQIHKDGW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  18
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.53
• 拓扑面积：
  30.8
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  1-isobutyl-6,7-dimethoxy-3,4-dihydroisoquinoline 在 甲醇 、 sodium tetrahydroborate 、 水 作用下， 以 甲醇 、 水 为溶剂， 反应 5.5h， 生成 O-Methyl-lophocerin
  参考文献：
  名称：

  粉防己碱的简化衍生物作为有效且特异性的 P-gp 抑制剂，可逆转癌症化疗中的多药耐药性

  摘要：

  靶向抑制药物外排转运蛋白 P-糖蛋白 (P-gp) 是逆转癌症化疗中多药耐药性的重要策略。本研究基于分子动力学模拟和片段生长对天然粉防己碱进行了合理的结构简化，得到了一种易于制备、新颖且简化的化合物OY-101，具有高逆转活性和低细胞毒性。通过逆转活性测定、流式细胞术、平板克隆形成测定和药物协同分析证实其与长春新碱（VCR）对耐药细胞Eca109/VCR具有优异的协同抗癌作用（IC 50 = 9.9 nM，RF = 690） 。进一步的机制研究证实OY-101是一种特异性、高效的P-gp抑制剂。重要的是，OY-101增加了体内VCR 致敏性，但没有明显的毒性。总体而言，我们的研究结果可能为设计新型特异性 P-gp 抑制剂作为抗肿瘤化疗增敏剂提供替代策略。

  DOI：

  10.1021/acs.jmedchem.2c02061
• 作为产物：
  描述：

  N-(3,4-二甲氧基苯乙基)甲酰胺 在 PPA 、 polyphophoric acid 、 对甲苯磺酸 作用下， 以 二氯甲烷 、 1,2-二氯乙烷 为溶剂， 反应 2.5h， 生成 1-isobutyl-6,7-dimethoxy-3,4-dihydroisoquinoline
  参考文献：
  名称：

  A Synthesis of N-Formylenamides of Isoquinoline

  摘要：

  N-Formylenamides of isoquinoline (6) were obtained from N-[2-(2-acyl-4,5 -dimethoxyphenyl)ethyl] formamides (5) by cyclization in the presence of catalytic amount of p-toluensulfonic acid. The starting keto formamides (5) were obtained by acylation of a N-[2-(3,4-dimethoxyphenyl)ethyl] formam ides (1) with carboxylic acids or their anhydrides in polyphosphoric acid (PPA).

  DOI：

  10.3987/com-05-10645

文献信息

• Quinolizidines. VII. Structure of O-methylpsychotrine: The endocyclic versus the exocyclic double bond structure in the dihydroisoquinoline moiety.
  作者：TOZO FUJII、MASASHI OHBA、OSAMU YONEMITSU、YOSHIO BAN

  DOI：10.1248/cpb.30.598

  日期：——

  By comparison of its ultraviolet spectra in H2O at various pH's with those of model compounds, 11, 14, 16, 17, and 18, the Ipecac alkaloid O-methylpsychotrine has been shown to have the genuine 3, 4-dihydroisoquinoline structure (1), not the exocyclic double bond structure (4), in the free base form as well as in the protonated form. The 1H nuclear magnetic resonance (NMR) and 13C NMR spectra of the alkaloid have also confirmed this endocyclic double bond structure in the dihydroisoquinoline moiety. These results indicate that the position of the double bond for simple 1-alkyl-3, 4-dihydroisoquinolines is endocyclic, and factors that stabilize the exocyclic double bond structure are discussed. 1-tert-Butyl-3, 4-dihydro-6, 7-dimethoxy-2-methylisoquinolinium iodide (30) has been found to be unstable in H2O. On heating in H2O at 90°C for 10 min, it underwent ring opening to give 27 in good yield. The acid dissociation constants for 1-methyl-(16) and 1-tert-butyl-3, 4-dihydro-6, 7-dimethoxyisoquinoline (18) in H2O at 20°C were spectrometrically determined to be 9.16±0.02 and 8.80±0.02, respectively.

  通过将不同 pH 值下的水中紫外光谱与模型化合物 11、14、16、17 和 18 进行比较，吐根生物碱 O-甲基精神烟碱已被证明具有真正的 3, 4-二氢异喹啉结构 (1) ，不是环外双​​键结构 (4)，无论是游离碱形式还是质子化形式。该生物碱的1H核磁共振(NMR)和13C NMR谱也证实了二氢异喹啉部分的这种环内双键结构。这些结果表明简单的1-烷基-3,4-二氢异喹啉的双键位置是环内的，并且讨论了稳定环外双键结构的因素。 1-叔丁基-3, 4-二氢-6, 7-二甲氧基-2-甲基异喹啉碘化物 (30) 被发现在水中不稳定。在 H2O 中于 90°C 加热 10 分钟后，它发生开环，以良好的收率得到 27。 1-甲基-(16) 和 1-叔丁基-3, 4-二氢-6, 7-二甲氧基异喹啉 (18) 在 20°C 水中的酸解离常数经光谱测定分别为 9.16±0.02 和 8.80±分别为 0.02。
• Synthesis and Radioligand Binding Studies of Methoxylated 1,2,3,4-Tetrahydroisoquinolinium Derivatives as Ligands of the Apamin-Sensitive Ca²⁺-Activated K⁺ Channels
  作者：Amaury Graulich、Jacqueline Scuvée-Moreau、Livia Alleva、Cédric Lamy、Olivier Waroux、Vincent Seutin、Jean-François Liégeois

  DOI：10.1021/jm0607395

  日期：2006.11.30

  Several methoxylated 1,2,3,4-tetrahydroisoquinoliniums derived from N-methyl-laudanosine and N-methyl-noscapine were synthesized and evaluated for their affinity for apamin-sensitive binding sites. The quaternary ammonium derivatives have a higher affinity with regard to the tertiary amines. 6,7-Dimethoxy analogues possess a higher affinity than the 6,8- and 7,8- dimethoxy isomers. A 3,4-dimethoxybenzyl or a 2-naphthylmethyl moiety in C-1 position are more favorable than a 3,4-dimethoxyphenethyl group. Smaller groups such as propyl or isobutyl are unfavorable. In 6,7-dimethoxy analogues, increasing the size and lipophilicity with a naphthyl group in the C-1 position leads to a slight increase of affinity, while the same group in the 6,7,8- trimethoxy series is less favorable. The 6,7,8- trimethoxy derivative 3f is the first tertiary amine in the series to possess an affinity close to that of N-methyl-laudanosine and N-methyl-noscapine. Moreover, electrophysiological studies show that the most effective compound 4f blocks the apamin-sensitive afterhyperpolarization in rat dopaminergic neurons.
• Tetrahydroisoquinolines. I. 1-Alkyl-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinolines¹
  作者：P. N. Craig、F. P. Nabenhauer、P. M. Williams、E. Macko、J. Toner

  DOI：10.1021/ja01125a051

  日期：1952.3
• Alkaloid Studies. V.¹ Synthesis of 1-Isopropyl and 1-Isobutyl-2-methyl-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline
  作者：Carl Djerassi、J. J. Beereboom、S. P. Marfey、S. K. Figdor

  DOI：10.1021/ja01607a081

  日期：1955.1
• 1-alkyl-6, 7-dihydroxy-1, 2, 3, 4-tetrahydroisoquinoline compounds
  申请人：SMITH KLINE FRENCH LAB

  公开号：US02663709A1

  公开（公告）日：1953-12-22