4-Chloro-3-methoxy-7-(nonylamino)isochromen-1-one | 1422968-84-0

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 异香豆素及其衍生物
• 英文名称: 4-Chloro-3-methoxy-7-(nonylamino)isochromen-1-one
• 英文别名: 4-chloro-3-methoxy-7-(nonylamino)isochromen-1-one
• CAS: 1422968-84-0
• 化学式: C₁₉H₂₆ClNO₃
• 分子量: 351.873
• InChiKey: XPEIUDIGZCMDKK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.4
• 重原子数：
  24
• 可旋转键数：
  10
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.53
• 拓扑面积：
  47.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  在 sodium cyanoborohydride 作用下， 以 二氯甲烷 为溶剂， 反应 16.0h， 生成 4-Chloro-3-methoxy-7-(nonylamino)isochromen-1-one
  参考文献：
  名称：

  Further characterization of a putative serine protease contributing to the γ-secretase cleavage of β-amyloid precursor protein

  摘要：

  The 3-alkoxy-7-amino-4-chloro-isocoumarins JLK-6 and JLK-2 have been shown to markedly reduce the production of Amyloid beta-peptide (A beta) by Amyloid-beta Precursor Protein (APP) expressing HEK293 cells by affecting the gamma-secretase cleavage of APP, with no effect on the cleavage of the Notch receptor. This suggested that these compounds do not directly inhibit the presenilin-dependent gamma-secretase complex but more likely interfere with an upstream target involved in gamma-secretase-associated pathway. The mechanism of action of these compounds is unknown and there are high fundamental and therapeutical interests to unravel their target. Isocoumarin compounds were previously shown to behave as potent mechanism-based irreversible inhibitors of serine proteases, suggesting that the JLK-directed target could belong to such enzyme family. To get further insight into structure-activity relationships and to develop more potent isocoumarin derivatives, we have synthesized and evaluated a series of isocoumarin analogues with modifications at positions 3, 4 and 7. In particular, the 7-amino group was substituted with either acyl, urethane, alkyl or aryl groups, which could represent additional interaction sites. Altogether, the results highlighted the essential integrity of the 3-alkoxy-7-amino-4-chloro-isocoumarin scaffold for A beta-lowering activity and supported the involvement of a seri ne protease, or may be more generally, a serine hydrolase. The newly reported 7-N-alkyl series produced the most active compounds with an IC50 between 10 and 30 mu M. Finally, we also explored peptide boronates, a series of reversible serine protease inhibitors, previously shown to also lower cellular A beta production. The presented data suggested they could act on the same target or interfere with the same pathway as isocoumarins derivatives. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2012.11.045

文献信息

• Further characterization of a putative serine protease contributing to the γ-secretase cleavage of β-amyloid precursor protein
  作者：Marine Peuchmaur、Marie-Agnès Lacour、Jean Sévalle、Vincent Lisowski、Youness Touati-Jallabe、Fabien Rodier、Jean Martinez、Frédéric Checler、Jean-François Hernandez

  DOI：10.1016/j.bmc.2012.11.045

  日期：2013.2

  The 3-alkoxy-7-amino-4-chloro-isocoumarins JLK-6 and JLK-2 have been shown to markedly reduce the production of Amyloid beta-peptide (A beta) by Amyloid-beta Precursor Protein (APP) expressing HEK293 cells by affecting the gamma-secretase cleavage of APP, with no effect on the cleavage of the Notch receptor. This suggested that these compounds do not directly inhibit the presenilin-dependent gamma-secretase complex but more likely interfere with an upstream target involved in gamma-secretase-associated pathway. The mechanism of action of these compounds is unknown and there are high fundamental and therapeutical interests to unravel their target. Isocoumarin compounds were previously shown to behave as potent mechanism-based irreversible inhibitors of serine proteases, suggesting that the JLK-directed target could belong to such enzyme family. To get further insight into structure-activity relationships and to develop more potent isocoumarin derivatives, we have synthesized and evaluated a series of isocoumarin analogues with modifications at positions 3, 4 and 7. In particular, the 7-amino group was substituted with either acyl, urethane, alkyl or aryl groups, which could represent additional interaction sites. Altogether, the results highlighted the essential integrity of the 3-alkoxy-7-amino-4-chloro-isocoumarin scaffold for A beta-lowering activity and supported the involvement of a seri ne protease, or may be more generally, a serine hydrolase. The newly reported 7-N-alkyl series produced the most active compounds with an IC50 between 10 and 30 mu M. Finally, we also explored peptide boronates, a series of reversible serine protease inhibitors, previously shown to also lower cellular A beta production. The presented data suggested they could act on the same target or interfere with the same pathway as isocoumarins derivatives. (C) 2012 Elsevier Ltd. All rights reserved.