2-[4,7-Bis(carboxylatomethyl)-10-[2-oxo-2-(phenanthridin-6-ylmethylamino)ethyl]-1,4,7,10-tetrazacyclododec-1-yl]acetate;terbium(3+) | 1582785-25-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 喹啉及其衍生物
• 英文名称: 2-[4,7-Bis(carboxylatomethyl)-10-[2-oxo-2-(phenanthridin-6-ylmethylamino)ethyl]-1,4,7,10-tetrazacyclododec-1-yl]acetate;terbium(3+)
• CAS: 1582785-25-8
• 化学式: C₃₀H₃₅N₆O₇Tb
• 分子量: 750.569
• InChiKey: QXCUBVVWLOGOCP-UHFFFAOYSA-K

计算性质

• 辛醇/水分配系数(LogP)：
  -3.52
• 重原子数：
  44
• 可旋转键数：
  7
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  175
• 氢给体数：
  1
• 氢受体数：
  12

反应信息

• 作为产物：
  描述：

  terbium(III) chloride 、 2,2',2''-(10-(2-oxo-2-((phenanthridin-6-ylmethyl)amino)ethyl)-1,4,7,10-tetraazacyclododecane-1,4,7-triyl)triacetic acid 在 sodium hydroxide 作用下， 以 水 为溶剂， 反应 114.0h， 以100%的产率得到2-[4,7-Bis(carboxylatomethyl)-10-[2-oxo-2-(phenanthridin-6-ylmethylamino)ethyl]-1,4,7,10-tetrazacyclododec-1-yl]acetate;terbium(3+)
  参考文献：
  名称：

  Effect of Lanthanide Complex Structure on Cell Viability and Association

  摘要：

  A systematic study of the effect of hydrophobicity and charge on the cell viability and cell association of lanthanide metal complexes is presented. The terbium luminescent probes feature a macrocyclic polyaminocarboxylate ligand (DOTA) in which the hydrophobicity of the antenna and that of the carboxyamide pendant arms are independently varied. Three sensitizing antennas were investigated in terms of their function in vitro: 2-methoxy-isophthalamide (IAM(OMe)), 2-hydroxyisophthalamide (IAM), and 6-methylphenanthridine (Phen). Of these complexes, Tb-DOTA-IAM exhibited the highest quantum yield, although the higher cell viability and more facile synthesis of the structurally related Tb-DOTA-IAM(OMe) platform renders it more attractive. Further modification of this latter core structure with carboxyamide arms featuring hydrophobic benzyl, hexyl, and trifluoro groups as well as hydrophilic amino acid based moieties generated a family of complexes that exhibit high cell viability (ED50 > 300 mu M) regardless of the lipophilicity or the overall complex charge. Only the hexyl-substituted complex reduced cell viability to 60% in the presence of 100 mu M complex. Additionally, cellular association was investigated by ICP-MS and fluorescence microscopy. Surprisingly, the hydrophobic moieties did not increase cell association in comparison to the hydrophilic amino acid derivatives. It is thus postulated that the hydrophilic nature of the 2-methoxyisophthalamide antenna (IAM(OMe)) disfavors the cellular association of these complexes. As such, responsive luminescent probes based on this scaffold would be appropriate for the detection of extracellular species.

  DOI：

  10.1021/ic500282n