2,7,8-trimethyl-6-methoxy-2-(4-methylpentyl)chroman

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: 2,7,8-trimethyl-6-methoxy-2-(4-methylpentyl)chroman
• 英文别名: 6-Methoxy-2,7,8-trimethyl-2-(4-methylpentyl)-3,4-dihydrochromene；6-methoxy-2,7,8-trimethyl-2-(4-methylpentyl)-3,4-dihydrochromene
• 化学式: C₁₉H₃₀O₂
• 分子量: 290.446
• InChiKey: PDUMRKCRCFRTLJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.8
• 重原子数：
  21
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.68
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  6-甲基-2-庚酮 在 四氢吡咯 、 盐酸 、 potassium carbonate 、 锌 作用下， 以 甲醇 、 水 、 N,N-二甲基甲酰胺 、 甲苯 为溶剂， 反应 5.0h， 生成 2,7,8-trimethyl-6-methoxy-2-(4-methylpentyl)chroman
  参考文献：
  名称：

  Exploitation of the Ability of γ-Tocopherol to Facilitate Membrane Co-localization of Akt and PHLPP1 to Develop PHLPP1-Targeted Akt Inhibitors

  摘要：

  Previously, we reported that Akt inactivation by gamma-tocopherol (2) in PTEN-negative prostate cancer cells resulted from its unique ability to facilitate membrane co-localization of Akt and PHLPP1 (PH domain leucine-rich repeat protein phosphatase isoform 1), a Ser473-specific Akt phosphatase, through pleckstrin homology (PH) domain binding. This finding provided a basis for exploiting 2 to develop a novel class of PHLPP1-targeted Akt inhibitors. Here, we used 3 (gamma-VE5), a side chain-truncated 2 derivative, as a scaffold for lead optimization. The proof-of-concept of this structural optimization was obtained by 20, which exhibited higher antitumor efficacy than 3 in PTEN-negative cancer cells through PHLPP1-facilitated Akt inactivation. Like 3, 20 preferentially recognized the PH domains of Akt and PHLPP1, as its binding affinities for other PH domains, including those of ILK and PDK1, were an order-of-magnitude lower. Moreover, 20 was orally active in suppressing xenograft tumor growth in nude mice, which underlines the translational potential of this new class of Akt inhibitor in PTEN-deficient cancers.

  DOI：

  10.1021/jm501751b

文献信息

• Exploitation of the Ability of γ-Tocopherol to Facilitate Membrane Co-localization of Akt and PHLPP1 to Develop PHLPP1-Targeted Akt Inhibitors
  作者：Ribai Yan、Hsiao-Ching Chuang、Naval Kapuriya、Chih-Chien Chou、Po-Ting Lai、Hsin-Wen Chang、Chia-Ning Yang、Samuel K. Kulp、Ching-Shih Chen

  DOI：10.1021/jm501751b

  日期：2015.3.12

  Previously, we reported that Akt inactivation by gamma-tocopherol (2) in PTEN-negative prostate cancer cells resulted from its unique ability to facilitate membrane co-localization of Akt and PHLPP1 (PH domain leucine-rich repeat protein phosphatase isoform 1), a Ser473-specific Akt phosphatase, through pleckstrin homology (PH) domain binding. This finding provided a basis for exploiting 2 to develop a novel class of PHLPP1-targeted Akt inhibitors. Here, we used 3 (gamma-VE5), a side chain-truncated 2 derivative, as a scaffold for lead optimization. The proof-of-concept of this structural optimization was obtained by 20, which exhibited higher antitumor efficacy than 3 in PTEN-negative cancer cells through PHLPP1-facilitated Akt inactivation. Like 3, 20 preferentially recognized the PH domains of Akt and PHLPP1, as its binding affinities for other PH domains, including those of ILK and PDK1, were an order-of-magnitude lower. Moreover, 20 was orally active in suppressing xenograft tumor growth in nude mice, which underlines the translational potential of this new class of Akt inhibitor in PTEN-deficient cancers.