2-(4'-methoxynaphthalen-1'-yl)-6,8,8-triethyldesmosdumotin B | 1268272-16-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: 2-(4'-methoxynaphthalen-1'-yl)-6,8,8-triethyldesmosdumotin B
• 英文别名: 6,8,8-Triethyl-5-hydroxy-2-(4-methoxynaphthalen-1-yl)chromene-4,7-dione
• CAS: 1268272-16-7
• 化学式: C₂₆H₂₆O₅
• 分子量: 418.489
• InChiKey: AZAFWFJMDAKMPW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.3
• 重原子数：
  31
• 可旋转键数：
  5
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.31
• 拓扑面积：
  72.8
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  2-acetyl-4,4,6-triethyl-3-hydroxy-5-methoxycyclohexa-2,5-dien-1-one 在 硫酸 、 碘 、 三溴化硼 、 potassium hydroxide 作用下， 以 乙醇 、 二氯甲烷 、 水 、 二甲基亚砜 为溶剂， 反应 1.0h， 生成 2-(4'-methoxynaphthalen-1'-yl)-6,8,8-triethyldesmosdumotin B
  参考文献：
  名称：

  Antitumor Agents. 284. New Desmosdumotin B Analogues with Bicyclic B-Ring as Cytotoxic and Antitubulin Agents

  摘要：

  We previously reported that the biological activity of analogues of desmosdumotin B (1) was dramatically changed depending on the B-ring system. A naphthalene B-ring analogue 3 exerted potent in vitro activity against a diverse panel of human tumor cell lines with GI(50) values of 0.8-2.1 mu M. In contrast, 1 analogues with a phenyl B-ring showed unique selective activity against P-glycoprotein (P-gp) over-expressing multidrug resistant cell line. We have now prepared and evaluated, 1 analogues with bicyclic or tricyclic aromatic B-ring systems as in vitro inhibitors of human cancer cell line proliferation. Among all synthesized derivatives, 21 with a benzo[b]thiophenyl B-ring was highly active, with GI(50) values of 0.06-0.16 mu M, and this activity was not influenced by overexpression of P-gp. Furthermore, 21 inhibited tubulin assembly in vitro with an IC(50) value of 2.0 mu M and colchicine binding by 7896 as well as cellular microtubule polymerization and spindle formation.

  DOI：

  10.1021/jm1011947

文献信息

• Development of a Novel Class of Tubulin Inhibitor from Desmosdumotin B with a Hydroxylated Bicyclic B-Ring
  作者：Kyoko Nakagawa-Goto、Akifumi Oda、Ernest Hamel、Emika Ohkoshi、Kuo-Hsiung Lee、Masuo Goto

  DOI：10.1021/jm501859j

  日期：2015.3.12

  A series of newly synthesized hydroxylated analogues of triethyldesmosdumotin B (TEDB) with a bicyclic B-ring exhibited a significantly different mode of action for affecting microtubule dynamics and spindle formation but had the same antiproliferative activity spectrum, including activity against multidrug-resistant tumors. These analogues efficiently induced cell cycle arrest at prometaphase and caused formation of immature multipolar spindles. 6'-Hydroxyl TEDB-TB (8) disrupted bipolar spindle formation but had a negligible effect on interphase microtubules. On the basis of the predicted binding modes of the new compounds with tubulin dimer, compound 4 forms three hydrogen bonds (H-bonds) only with alpha-tubulin at the colchicine site; in contrast, 8 forms H-bonds with both alpha- and beta-tubulin. We predict that, when a compound/ligand, such as 8, forms H-bonds to both alpha- and beta-tubulins, spindle formation is disrupted more than the dynamics of interphase microtubules. This result may reflect the well-known greater dynamicity of spindle microtubules as compared with interphase microtubules.
• Antitumor Agents. 284. New Desmosdumotin B Analogues with Bicyclic B-Ring as Cytotoxic and Antitubulin Agents
  作者：Kyoko Nakagawa-Goto、Pei-Chi Wu、Chin-Yu Lai、Ernest Hamel、Hao Zhu、Liying Zhang、Takashi Kozaka、Emika Ohkoshi、Masuo Goto、Kenneth F. Bastow、Kuo-Hsiung Lee

  DOI：10.1021/jm1011947

  日期：2011.3.10

  We previously reported that the biological activity of analogues of desmosdumotin B (1) was dramatically changed depending on the B-ring system. A naphthalene B-ring analogue 3 exerted potent in vitro activity against a diverse panel of human tumor cell lines with GI(50) values of 0.8-2.1 mu M. In contrast, 1 analogues with a phenyl B-ring showed unique selective activity against P-glycoprotein (P-gp) over-expressing multidrug resistant cell line. We have now prepared and evaluated, 1 analogues with bicyclic or tricyclic aromatic B-ring systems as in vitro inhibitors of human cancer cell line proliferation. Among all synthesized derivatives, 21 with a benzo[b]thiophenyl B-ring was highly active, with GI(50) values of 0.06-0.16 mu M, and this activity was not influenced by overexpression of P-gp. Furthermore, 21 inhibited tubulin assembly in vitro with an IC(50) value of 2.0 mu M and colchicine binding by 7896 as well as cellular microtubule polymerization and spindle formation.