tert-butyl 2-(N-(3-(isopropyldisulfanyl)-5-hydroxypent-2-en-2-yl)formamido)acetate | 1333480-92-4

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: tert-butyl 2-(N-(3-(isopropyldisulfanyl)-5-hydroxypent-2-en-2-yl)formamido)acetate
• CAS: 1333480-92-4
• 化学式: C₁₅H₂₇NO₄S₂
• 分子量: 349.516
• InChiKey: HWBFBGSFOFMXRW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.19
• 重原子数：
  22.0
• 可旋转键数：
  9.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.73
• 拓扑面积：
  66.84
• 氢给体数：
  1.0
• 氢受体数：
  6.0

反应信息

• 作为反应物：
  描述：

  tert-butyl 2-(N-(3-(isopropyldisulfanyl)-5-hydroxypent-2-en-2-yl)formamido)acetate 在 4-二甲氨基吡啶 、 高氯酸 、 N,N'-二环己基碳二亚胺 作用下， 以 二氯甲烷 为溶剂， 反应 10.5h， 生成
  参考文献：
  名称：

  Design, synthesis and biological evaluation for docetaxel-loaded brain targeting liposome with “lock-in” function

  摘要：

  Background: Glucose-modified liposome showed a good brain-targeting ability. However, bidirectional transport of glucose transporter-1 (GLUT₁) might reversely pump drugs out of the brain before releasing from the liposomes. Purpose: To overcome the bidirectional delivery of GLUT₁, the thiamine disulfide system (TDS), with ability of "lock-in", was introduced and a new ligand, L-TDS-G, was designed and synthesized. Methods: The liposome was prepared and characterized for particle size, zeta potential, surface morphological property, encapsulation efficiency and release profile. C6 glioma cells were used as an in vitro model to access the cellular uptake abilities and cytotoxicity of the liposomes. Competition assay was performed to validate the GLUT₁-mediated transport mechanism. Furthermore, the brain targeting abilities of the liposomes were evaluated through in vivo. Results: The preliminary evaluation in vivo demonstrated that L-TDS-G-coated liposome has an improved targeting ability and significantly increased the area under the concentration-time of docetaxel in brain as compared to naked docetaxel, non-coated and L-G coated liposomes. The relative uptake efficiency and concentration efficiency were enhanced by 3.82- and 4.99-fold compared to that of naked docetaxel, respectively. Conclusion: The results of this study indicated that L-TDS-G-coated liposome is a promising drug delivery system to enhance the brain concentrations of chemotherapeutic agents.

  DOI：

  10.3109/1061186x.2013.865032
• 作为产物：
  描述：

  4-甲基-5-(beta-羟乙基)噻唑 在 sodium hydroxide 作用下， 以 水 、 乙酸乙酯 、 乙腈 为溶剂， 生成 tert-butyl 2-(N-(3-(isopropyldisulfanyl)-5-hydroxypent-2-en-2-yl)formamido)acetate
  参考文献：
  名称：

  Design, synthesis and biological evaluation for docetaxel-loaded brain targeting liposome with “lock-in” function

  摘要：

  Background: Glucose-modified liposome showed a good brain-targeting ability. However, bidirectional transport of glucose transporter-1 (GLUT₁) might reversely pump drugs out of the brain before releasing from the liposomes. Purpose: To overcome the bidirectional delivery of GLUT₁, the thiamine disulfide system (TDS), with ability of "lock-in", was introduced and a new ligand, L-TDS-G, was designed and synthesized. Methods: The liposome was prepared and characterized for particle size, zeta potential, surface morphological property, encapsulation efficiency and release profile. C6 glioma cells were used as an in vitro model to access the cellular uptake abilities and cytotoxicity of the liposomes. Competition assay was performed to validate the GLUT₁-mediated transport mechanism. Furthermore, the brain targeting abilities of the liposomes were evaluated through in vivo. Results: The preliminary evaluation in vivo demonstrated that L-TDS-G-coated liposome has an improved targeting ability and significantly increased the area under the concentration-time of docetaxel in brain as compared to naked docetaxel, non-coated and L-G coated liposomes. The relative uptake efficiency and concentration efficiency were enhanced by 3.82- and 4.99-fold compared to that of naked docetaxel, respectively. Conclusion: The results of this study indicated that L-TDS-G-coated liposome is a promising drug delivery system to enhance the brain concentrations of chemotherapeutic agents.

  DOI：

  10.3109/1061186x.2013.865032

文献信息

• Design, synthesis and biological evaluation of brain-specific glucosyl thiamine disulfide prodrugs of naproxen
  作者：Wei Fan、Yong Wu、Xian-Kun Li、Nian Yao、Xun Li、Yong-Guo Yu、Li Hai

  DOI：10.1016/j.ejmech.2011.05.029

  日期：2011.9

  glucose transporter 1 might decrease concentrations of the prodrugs in brain before the release of parent drugs. To overcome this defect, glucosyl thiamine disulfide prodrugs 1a–1c incorporating naproxen were designed and synthesized. Furthermore, prodrug 2 and 3 were also prepared as control. The favorable physicochemical properties of these prodrugs were verified by stability and metabolism studies. Results

  葡萄糖基衍生物显示出对大脑的有利分布。但是，在母体药物释放之前，葡萄糖转运蛋白1的双向转运可能会降低大脑中前药的浓度。为克服这一缺陷，设计并合成了含有萘普生的葡萄糖基硫胺素二硫化物前药1a - 1c。此外，还制备了前药2和3作为对照。这些前药的良好理化性质已通过稳定性和代谢研究得到证实。体内分布研究的结果表明1a – 1c和1b特别是，与2和3相比，脑中萘普生的水平显着增加。这项研究表明，二硫化葡萄糖基硫胺素是增强中枢神经系统活性药物的大脑生物利用度的有前途的载体。