| 1563187-49-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• CAS: 1563187-49-4
• 化学式: C₇₂H₁₂₈N₁₈O₂₄
• 分子量: 1629.91
• InChiKey: RHLGQHWLNVNGMI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.73
• 重原子数：
  114.0
• 可旋转键数：
  63.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.81
• 拓扑面积：
  463.58
• 氢给体数：
  6.0
• 氢受体数：
  36.0

反应信息

• 作为反应物：
  描述：

  在 三氟乙酸 作用下， 以 二氯甲烷 为溶剂， 反应 5.0h， 生成
  参考文献：
  名称：

  Oligo(ethylene glycol)-Based Thermosensitive Dendrimers and Their Tumor Accumulation and Penetration

  摘要：

  Dendrimers have several featured advantages over other nanomaterials as drug carriers, such as well-defined structure, specific low-nanometer size, and abundant peripheral derivable groups, etc. However, these advantages have not been fully exploited yet to optimize their biological performance, especially tumor penetration, which is a shortcoming of current nanomaterials. Here we show the syntheses of a new class of oligo(ethylene glycol) (OEG)-based thermosensitive dendrimers up to the fourth generation. Each dendrimer shows monodisperse structure. OEG/poly(ethylene glycol) (PEG) moieties with different precise lengths were introduced to the periphery of the fourth-generation dendrimer followed by an antitumor agent, gemcitabine (GEM). The biodistributions of the GEM-conjugated dendrimers were investigated by micro positron emission tomography and multispectral optoacoustic tomography imaging techniques and compared with that of GEM-conjugated poly(amidoamine) (PAMAM). The GEM-conjugated dendrimer with the longest peripheral PEG segments exhibited the most desirable tumor accumulation and penetration and thus had significantly higher antitumor activity than the GEM-conjugated PAMAM.

  DOI：

  10.1021/ja411457r
• 作为产物：
  描述：

  叠氮-三聚乙二醇-叔丁氧羰基 、 在 copper(ll) sulfate pentahydrate 、 sodium ascorbate 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 2.0h， 以95%的产率得到
  参考文献：
  名称：

  Oligo(ethylene glycol)-Based Thermosensitive Dendrimers and Their Tumor Accumulation and Penetration

  摘要：

  Dendrimers have several featured advantages over other nanomaterials as drug carriers, such as well-defined structure, specific low-nanometer size, and abundant peripheral derivable groups, etc. However, these advantages have not been fully exploited yet to optimize their biological performance, especially tumor penetration, which is a shortcoming of current nanomaterials. Here we show the syntheses of a new class of oligo(ethylene glycol) (OEG)-based thermosensitive dendrimers up to the fourth generation. Each dendrimer shows monodisperse structure. OEG/poly(ethylene glycol) (PEG) moieties with different precise lengths were introduced to the periphery of the fourth-generation dendrimer followed by an antitumor agent, gemcitabine (GEM). The biodistributions of the GEM-conjugated dendrimers were investigated by micro positron emission tomography and multispectral optoacoustic tomography imaging techniques and compared with that of GEM-conjugated poly(amidoamine) (PAMAM). The GEM-conjugated dendrimer with the longest peripheral PEG segments exhibited the most desirable tumor accumulation and penetration and thus had significantly higher antitumor activity than the GEM-conjugated PAMAM.

  DOI：

  10.1021/ja411457r