3',4'-Dimethoxy-2-hydroxystilben | 51924-86-8

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: 3',4'-Dimethoxy-2-hydroxystilben
• CAS: 51924-86-8
• 化学式: C₁₆H₁₆O₃
• 分子量: 256.301
• InChiKey: ACHMXXSHDCBLEM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.58
• 重原子数：
  19.0
• 可旋转键数：
  4.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  38.69
• 氢给体数：
  1.0
• 氢受体数：
  3.0

反应信息

• 作为反应物：
  描述：

  3',4'-Dimethoxy-2-hydroxystilben 在 palladium 10% on activated carbon 、 氢气 、 potassium hydroxide 作用下， 以 乙醇 、 二甲基亚砜 为溶剂， 反应 24.25h， 生成 1-[(3,4-dimethoxybenzyl)oxy]-2-[2-(3,4-dimethoxyphenyl)ethyl]benzene
  参考文献：
  名称：

  SAR study on arylmethyloxyphenyl scaffold: Looking for a P-gp nanomolar affinity

  摘要：

  Starting from the previously developed P-gp ligands 1a and 1b (EC50 = 0.25 mu M and 0.65 mu M, respectively), new arylmethyloxyphenyl derivatives have been synthesized as P-gp modulators in order to investigate: (i) the effect of small electron-donor groups (OMe) (5-11), (ii) the effect of the replacement of methoxy groups with an electron-withdrawal substituent (Cl) on C-ring (13) (iii) the effect induced by the replacement of C-ring with heteroaromatic cycles such as thiophene and pyrimidine (13, 15, 16), (iv) the effect induced by molecular constriction on C ring (14,17,18) on P-gp modulating activity. The results demonstrated that P-gp inhibition potency is strongly correlated to the number of methoxy groups in the A-ring whereas the methoxylation of C-ring seems to poorly affect P-gp activity. The best result was found for compound 10 that displays a nanomolar affinity (EC50 = 7.1 nM) towards P-gp pump and, in the meantime lacks of activity against MRP1 pump. (C) 2014 Published by Elsevier Masson SAS.

  DOI：

  10.1016/j.ejmech.2014.02.051
• 作为产物：
  描述：

  3,4-二甲氧基苄氯 在 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 乙腈 为溶剂， 反应 24.0h， 生成 3',4'-Dimethoxy-2-hydroxystilben
  参考文献：
  名称：

  SAR study on arylmethyloxyphenyl scaffold: Looking for a P-gp nanomolar affinity

  摘要：

  Starting from the previously developed P-gp ligands 1a and 1b (EC50 = 0.25 mu M and 0.65 mu M, respectively), new arylmethyloxyphenyl derivatives have been synthesized as P-gp modulators in order to investigate: (i) the effect of small electron-donor groups (OMe) (5-11), (ii) the effect of the replacement of methoxy groups with an electron-withdrawal substituent (Cl) on C-ring (13) (iii) the effect induced by the replacement of C-ring with heteroaromatic cycles such as thiophene and pyrimidine (13, 15, 16), (iv) the effect induced by molecular constriction on C ring (14,17,18) on P-gp modulating activity. The results demonstrated that P-gp inhibition potency is strongly correlated to the number of methoxy groups in the A-ring whereas the methoxylation of C-ring seems to poorly affect P-gp activity. The best result was found for compound 10 that displays a nanomolar affinity (EC50 = 7.1 nM) towards P-gp pump and, in the meantime lacks of activity against MRP1 pump. (C) 2014 Published by Elsevier Masson SAS.

  DOI：

  10.1016/j.ejmech.2014.02.051

文献信息

• Reactivity of Anodically Generated 4-Methoxystilbene Cation Radicals: The Influence of Ortho-Substituted Hydroxymethyl, Aminomethyl, and Carboxylic Acid Groups
  作者：Kam-Weng Chong、Noel F. Thomas、Yun-Yee Low、Toh-Seok Kam

  DOI：10.1021/acs.joc.8b02360

  日期：2018.12.21

  The effect of ortho′-substituted side chains bearing nucleophilic groups such as CH2OH, CH2NHR, and CO2H on the reactivity of anodically generated 4-methoxy- and 3,4-dimethoxystilbene cation radicals was investigated, and results were compared with those of substrates where the nucleophilic groups such as OH and NHR are directly attached to the aromatic ring. It was found that when ortho′-substituted

  研究了带有CH 2 OH，CH 2 NHR和CO 2 H等亲核基团的邻位取代侧链对阳极生成的4-甲氧基和3,4-二甲氧基methoxy阳离子自由基反应性的影响，结果是与亲核基团（例如OH和NHR）直接连接到芳环的底物相比。研究发现，当另一个环上存在邻位取代基（例如CH 2 OH或CH 2 NHR）时，只有直接的分子内阳离子亲核反应会发生，从而生成双苯并吡喃或双异喹啉。交叉产物（先前在邻位取代基为OH和NH 2时获得），例如未形成稠合的苯并x庚酮/稠合的苯并氮杂nes酮。当邻位取代基为COOH时，直接发生分子内阳离子-亲核反应，从而以高收率得到相应的双-δ-内酯。由于竞争性的芳族取代反应，另外的3-甲氧基取代基的存在导致其他稠合多环产物的形成。提出了导致不同产物的反应途径以及本斯蒂芬苯酯所表现出的行为差异的原因。结果为阳极产生的二苯乙烯阳离子自由基的反应性和行为提供了更多的见解。