4,9-dioxo-4,9-dihydronaphtho[2,3-b]furan-2-carbaldehyde oxime | 1393549-90-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 萘并呋喃类
• 英文名称: 4,9-dioxo-4,9-dihydronaphtho[2,3-b]furan-2-carbaldehyde oxime
• 英文别名: 2-(Hydroxyiminomethyl)benzo[f][1]benzofuran-4,9-dione
• CAS: 1393549-90-0
• 化学式: C₁₃H₇NO₄
• 分子量: 241.203
• InChiKey: JAAMOZDLMVJTNT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  18
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  79.9
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  4,9-dioxo-4,9-dihydronaphtho[2,3-b]furan-2-carbaldehyde oxime 在 乙酸酐 作用下， 反应 2.0h， 以65%的产率得到4,9-Dioxobenzo[f][1]benzofuran-2-carbonitrile
  参考文献：
  名称：

  Synthesis and Structure–Activity Relationships of Lapacho Analogues. 1. Suppression of Human Keratinocyte Hyperproliferation by 2-Substituted Naphtho[2,3-b]furan-4,9-diones, Activation by Enzymatic One- and Two-Electron Reduction, and Intracellular Generation of Superoxide

  摘要：

  A series of linearly anellated lapacho quinone analogues substituted at the 2-position of the tricyclic naphtho-[2,3-b]furan-4,9-dione system were synthesized and evaluated for their ability to suppress keratinocyte hyperproliferation using HaCaT cells as the primary test system. While very good in vitro potency with IC50 values in the submicromolar range was attained with electron-withdrawing substituents, some compounds were found to induce plasma membrane damage, as evidenced by the release of LDH activity from cytoplasm of the keratinocytes. The most potent analogue against keratinocyte hyperproliferation was the 1,2,4-oxadiazole 18, the potency of which was combined with comparably low cytotoxic membrane damaging effects. Structure-activity relationship studies with either metabolically stable or labile analogues revealed that the quinone moiety was required for activity. Selected compounds were studied in detail for their capability to generate superoxide radicals both in isolated enzymatic one- and two-electron reduction assays as well as in a HaCaT cell-based assay.

  DOI：

  10.1021/jm3009597
• 作为产物：
  描述：

  4,9-dioxo-4,9-dihydronaphtho[2,3-b]furan-2-carbaldehyde 在 盐酸羟胺 、 potassium carbonate 作用下， 以 乙醇 、 水 为溶剂， 反应 2.0h， 以94%的产率得到4,9-dioxo-4,9-dihydronaphtho[2,3-b]furan-2-carbaldehyde oxime
  参考文献：
  名称：

  Synthesis and Structure–Activity Relationships of Lapacho Analogues. 1. Suppression of Human Keratinocyte Hyperproliferation by 2-Substituted Naphtho[2,3-b]furan-4,9-diones, Activation by Enzymatic One- and Two-Electron Reduction, and Intracellular Generation of Superoxide

  摘要：

  A series of linearly anellated lapacho quinone analogues substituted at the 2-position of the tricyclic naphtho-[2,3-b]furan-4,9-dione system were synthesized and evaluated for their ability to suppress keratinocyte hyperproliferation using HaCaT cells as the primary test system. While very good in vitro potency with IC50 values in the submicromolar range was attained with electron-withdrawing substituents, some compounds were found to induce plasma membrane damage, as evidenced by the release of LDH activity from cytoplasm of the keratinocytes. The most potent analogue against keratinocyte hyperproliferation was the 1,2,4-oxadiazole 18, the potency of which was combined with comparably low cytotoxic membrane damaging effects. Structure-activity relationship studies with either metabolically stable or labile analogues revealed that the quinone moiety was required for activity. Selected compounds were studied in detail for their capability to generate superoxide radicals both in isolated enzymatic one- and two-electron reduction assays as well as in a HaCaT cell-based assay.

  DOI：

  10.1021/jm3009597